Dunster House P5-3060CORGAZ User manual

INSTALLATION MANUAL
UNICORN CHUNKY CORNER GAZEBO
3m x 6m
P5-3060CORGAZ
Please note:
1. This manual is designed for a right handed Gazebo but can be also used to build a left handed version.
2. If you have bought shingles, please use our shingle installation instructions.
3. If you have bought Atlas Single Carport/Garage or wall panel packs for your gazebo, please follow
the instructions provided at the end of these manuals for how to assemble the panels.
4. If you have bought Atlas Single Garage, please refer to the instructions provided with the garage
door pack on how to assemble doors.
5. Fixings are supplied with Gazebo (except for those required to secure Bracket to base)
Unique Product Reference Number:
__________________________________
Manufacturer:
Dunster House Ltd.
Caxton Road
Bedford
Bedfordshire
England
MK41 0LF
Customer Service Department:
[e-mail]
www.dunsterhouse.co.uk
V5

Queries Procedure
Important Information
You will need
Please retain all documentation relating to your purchase.
In the unlikely event that you need to contact us, please do so in writing to:
Email: [e-mail]
Post: Dunster House Ltd, Caxton Road, Elms Farm Industrial Estate, Bedford, MK41 0LF, England.
Our Customer Service department is open 9 a.m. to 5 p.m. Monday to Friday. Please include your Sales Order (SO)
number or post code in any correspondence with Customer Service to enable them to locate your file.
The Nature of Wood
The wood provided for your garden building is softwood which has been kiln dried and is pressure treated for
protection against fungal decay and insect infestation. Wood is a natural product which may have knots, knot holes,
imperfections, cracks and warping.
Due to the inherent properties of wood we make no guarantees with regards to the above, nor will replace any
lengths of timber for any of the following reasons:
•Any timber that contains knots where they do not influence the structural stability of the product.
•Cosmetic appearances - colour variations e.g. caused by the structure or age of the product.
•Timber that has shakes, cracks or gaps that do not influence the structural strength of the product.
•Any timber that has been covered or buried underground.
•Twisted timber that can be installed.
•Queries arising from a neglectful manner of construction be in the foundation or erection of the product.
•Queries due to modifications by the owner causing timber to deform.
Any valid queries will be satisfied by the exchange or replacement of the defective parts only.
Your Gazebo has been designed with the self build in mind. However, it is important that the assembly
instructions are followed carefully.
Precautions:
•Always use working gloves.
•It is essential to have an assistant.
•All screw holes need to be pre-drilled using a 3mm drill bit (not provided) to avoid timber splitting.
The Gazebo is pressure treated so you will not need to treat it immediately or apply a preservative.
Pressure treatment does not mean that the timbers are waterproof, so you may wish to apply water repellent.
Water repellent can also be applied to timbers treated with a preservative.
Colour Transfer
This product has been pressure treated with wood preservative and a brown colour additive. Consideration should
be given to the propensity of the material to stain light colour adjacent surfaces, such as paving flags, render or
coated timber surfaces. We recommend contact between the timber and these surfaces is limited, and careful
consideration to storing the product prior to assembly should been taken in order to prevent such discolouration.
2 People Measuring Tape Spirit Level Drill/Driver
Gloves Ladder Hammer Utility Knife
Mallet Pozidriv bits 3mm Drill bit Saw
Sockt Set Spanner 16mm Masonry Drill Bit (Wall panels only)

Page 3
Components required for Unicorn Chunky Corner Gazebo 6m x 3m
120x120x2260.A
6x Post (Pressure Treated)
120x120x2260.C
2x Post (Pressure Treated)
45x140x3200.A
2x Beam (Pressure Treated)
45x140x3095.A
2x Beam (Pressure Treated)
45x140x3050.A
2x Rafter (Pressure Treated)
45x140x2282.A
4x Rafter (Pressure Treated)
45x140x1785.A
6x Rafter (Pressure Treated)
2260 120
120
3200
140
45
2282
140
45
1785
140
45
2260
120
120
3095
140
45
3050
140
45

Page 4
Components required for Unicorn Chunky Corner Gazebo 6m x 3m
45x140x1804.A
4x Rafter (Pressure Treated)
45x140x1035.A
4x Rafter (Pressure Treated)
45x140x1035.B
4x Rafter (Pressure Treated)
45x140x2762.A
1x Ridge Board (Pressure Treated)
45x140x630.A
16x Brace (Pressure Treated)
20x120x300.A
32x Post Trim (Pressure Treated)
F.2843
38x Roof Board (Pressure Treated)
F.2843.A
2x Roof Board (Pressure Treated)
630
140
45
120 20
300
140
2762 45
2843 19
95
2843 19
53
1035
140
45
1035 45
140
1804
140
45

Roof Board Sizes
DIM 'A' QTY
F.46.A 8
F.129.A 8
F.211.A 8
F.292.A 8
F.374.A 8
F.455.A 8
F.537.A 8
F.618.A 8
F.700.A 8
F.782.A 8
Roof Board Sizes
DIM 'A' QTY
F.863.A 8
F.944.A 8
F.1026.A 8
F.1108.A 8
F.1189.A 8
F.1271.A 8
F.1352.A 8
F.1434.A 8
F.1516.A 8
F.1597.A 8
Page 5
Components required for Unicorn Chunky Corner Gazebo 6m x 3m
35x70x2196.A
4x Rafter Tie (Pressure Treated)
Roof Boards
Pressure Treated
45x45x2830
2x SMB014 Support (Pressure Treated)
45x45x2120
1x Roof Support
ACCESSORIES
Description - Fixings QTY
120mm Screws for Rafters 5
M6x45mm Hex. Head Bolts for SMB014 Brackets 48
M6 Washers for SMB014 Brackets 48
M6 Clave Nuts for SMB014 Brackets 48
M10x120mm Hex. Head Screws for Braces 32
M10x20mm Washers for Braces 32
40mm Ring Shank Nails for Roof Boards 568
SMB014 Bracket 2
ACCESSORIES
Description - Fixings QTY
H2.5 Bracket 18
Bracket LS30 8
70x70x55mm L Bracket 32
Dunster House Logo 1
Customer Instructions 1
35mm Screws 338
100mm Screws 20
Dim 'A'
95
19
2196
70
35
2830 45
45
2120 45
45

Page 6
Assembly Steps for Unicorn Chunky Corner Gazebo 6m x 3m
** Avoid splitting timber parts by pre-drilling all screw holes **
- H2.5 Simpson Bracket
- Clave nut
- M10x120mm Hex, Head Screw
- Bracket LS30
- Circular Washer - SMB015 Bracket
- 70x70x55 L Bracket
- M6x45mm Hex.Head Bolt
- 35mm, 70mm, 100mm,
120mm, Screws

Page 7
Assembly Steps for Unicorn Chunky Corner Gazebo 6m x 3m
** Avoid splitting timber parts by pre-drilling all screw holes **
Step 1.
120x120x2260.A4x
45x145x3200.A2x
100mm Screws
8x
Step 2.
•Assemble (2x) 120x120x2260.A Posts and 45x140x3200.A Beam as shown in the diagram below.
•Fix by screwing through the Posts into the Beams using (2x) 100mm screws per Post.
Make sure the notches in
Beam are in line with the
cut-outs in the Posts
100mm Screws
•Assemble (2x) 120x120x2260.A Posts and 45x140x3200.A Beam as shown in the diagram below.
•Fix by screwing through the Posts into the Beams using (2x) 100mm screws per Post.
100mm Screws
2725
1303
4x- 120x120x2260.A
45x140x3200.A
45x140x3200.A

Page 8
Assembly Steps for Unicorn Chunky Corner Gazebo 6m x 3m
** Avoid splitting timber parts by pre-drilling all screw holes **
Step 3.
120x120x2260.A1x
120x120x2260.C2x
45x140x3095.A2x
Step 4.
45x140x3050.A2x
100mm Screws12x
120mm Screws1x
•Connect assemblies created in step 1 and 2 using (1x) 45x140x3095.A and 45x140x3050.A Beam
using (2x) 100mm screws per Post as shown in the diagram below.
•Important: If you want to build a left handed gazebo please rearrange posts to opposite of
what you see in the image below.
•Connect remaining (1x) 120x120x2260.A Posts and (1x) 120x120x2260.C Posts(1x) 45x140x3095.A and
(1x) 45x140x3050.A Beam using (4x) 100mm screws.
•Fix (1x) 120x120x2260.A Post in the left corner using (1x) 120mm screws and the interlocking notches in the
right corner with (1x) 120mm screw.
•Ensure the beams overhangs the posts by 118mm on all sides.
A = B
100mm Screws
100mm
Screws
100mm
Screws
118
155
155
A
B
Notches
interlocking
45x140x3095.A
45x140x3050.A
Step 1 Assembly
Step 2
Assembly
100mm Screws

Page 9
Assembly Steps for Unicorn Chunky Corner Gazebo 6m x 3m
** Avoid splitting timber parts by pre-drilling all screw holes **
Step 5.
45x140x630.A16x
M10x120mm Hex Head Screw
32x
M10x28mm Washer
32x
70x70x55 Bracket8x
35mm Screws32x
•Position and fix 10x 45x140x630.A Brace onto the posts. Use (2x) M10 x120mm Hex Head Screw
and 2x Washer for each post as shown in the diagram below.
•Ensure the 45x140x630.A Braces are flush with the Beams on both sides.
•Use a spirit level to check that the posts are vertical and beans are horizontal. Secure posts to the ground
using1x 70x70x55mm Bracket per post (fixings not supplied), ensuring posts are vertical, beams are
horizontal and diagonals are equal.
•To help support the corner where there is no post, place the temporary post 45x45x2120 underneath for
extra support until the roof has been attached.
45x45x2120
M10 x 120mm and M10 washer

Page 10
Assembly Steps for Unicorn Chunky Corner Gazebo 6m x 3m
Step 6.
45x140x1785.B6x
45x45x28302x
SMB014 Bracket
2x
H2.5 Bracket
6x
M6x45mm Hex Head Bolt and Washer
24x
Clave Nut
24x
35mm Screws48x
** Avoid splitting timber parts by pre-drilling all screw holes **
•Connect (3x) 45x140x1785.A Rafters by sliding onto the chamfered arms of SMB014 Bracket.
•Fasten using M6x45mm Hex Head Bolts, Washers and Clave nuts.
•There should be two sets of these.
•Lift two sets of (3) Rafters and SMB014 Bracket together and align notches on Beams and Rafters.
•Use 6x H2.5 Brackets to fix rafters to Beams using (8x) 35mm screws each.
•Refer to diagram on next page for Rafter spacing dimensions.
•Use 2x 45x45x2830 spider bracket temporary supports to locate the spider brackets at the correct height.
•Position both supports so that they sit directly underneath each spider bracket and rest on your concrete base.
•Leave these supports in position until after the roof boards have been fixed.
Notch
Non-chamfered
edge
Chamfered edge
Important!
Non chamfered arms
must face towards
the posts
Clave nut
M6 X 45 Hex Head Bolt & Washer
6x- 45x140x1785.A
45x45x2830
24x Washer

Page 11
Assembly Steps for Unicorn Chunky Corner Gazebo 6m x 3m
Step 7.
45x140x2282.A
4x
M6x45mm Hex Head Bolts
24x
45x140x2762.A
1x
M6 Washers
24x
M6 Clave Nuts
24x
120mm Screws
4x
** Avoid splitting timber parts by pre-drilling all screw holes **
•Fit 45x145x2282.A rafters and 45x140x2762.A ridge beam by slotting and bolting them into place.
•Use 4x M6x45mm Hex Head Bolts, Washers and Clave nuts per rafter to fix to SMB014 bracket as shown
in previous step.
•The other end of Rafters should also be fixed onto Posts as shown using 4x 120mm Screws.
•Check length of diagonals for squareness.
Note: All dimensions are approximate and subject to limitations of the material used and the methods of manufacture
120mm
Screw
4x- 45x140x2282.A
45x140x2762.A

Page 12
Assembly Steps for Unicorn Chunky Corner Gazebo 6m x 3m
Step 8.
45x140x1035.A
4x
H2.5 Bracket
8x
45x140x1035.B
4x
Bracket LS30
8x
35mm Screws192x
** Avoid splitting timber parts by pre-drilling all screw holes **
•Fix 4x 45x140x1035.A and 4x 45x140x1035.B rafters to 45x140x1804.A rafters.
•Use 8x LS30 Brackets and 6x 35mm screws per bracket.
•Use 8x H2.5 Brackets to fix other end of rafters to 45x140x3200.B beams using 10x 35mm screws.
4x 45x140x2196.A
12x M10x100mm Bolt & Nut
24x M10 Washer
Step 8A. Fix 35x70x2196.A Rafter Ties to rafter
as shown.
(2x) M10x100mm Hex Head Bolts,
(4x) M10x28mm Washers
(2x) M10 Nuts
Place 1x ABR70
Bracket on
opposite side
x4- 45x140x1804.A
4x- 45x140x1035.A
4x- 45x140x1035.B
35 mm Screw
35 mm Screw
35 mm Screw
E
q
u
a
l
Dimensions repeated
around gazebo
Eq
u
al

Roof Board Sizes
QTYPART NUMBER
8F.46.A
8F.129.A
8F.211.A
8F.292.A
8F.374.A
8
F.455.A
8F.537.A
8F.618.A
8F.700.A
8F.782.A
8F.863.A
8F.944.A
8F.1026.A
8F.1108.A
8F.1189.A
8F.1271.A
8F.1352.A
8F.1434.A
8F.1516.A
8F.1597.A
38F.2843
Page 13
Assembly Steps for Unicorn Chunky Corner Gazebo 6m x 3m
Step 9.
Roof Boards (Per Section)
20x
40mm Ring Shank Nail (Per
Section)
51x
F.284338x
** Avoid splitting timber parts by pre-drilling all screw holes **
•Start to fix the Roof Boards by positioning the longest board flush to the ends of Rafter and 22mm to the
centre.
•See diagram below.
•Use 1x Ring Shank Nail for every Rafter it touches.
•Repeat the above steps for every roof section.
Leave a 2mm gap between each roof board
•Using the same principle from the previous step continue to place roof boards rising up to the
gazebo apex (place roof boards in levels rather than in sections in order to keep roof boards
square.
•Leave a gap of approximately 2mm between each Roof Board using a 2mm spacer (not
provided).
•Work your way up to the apex of the roof.
F.1597.A
F.1597.A
F.1597.A
F.1597.A
F.2843
F.2843
F.1597.A
F.46.A
F.129.A
F.211.A
F.292.A
F.374.A
F.455.A
F.537.A
F.618.A
F.700.A
F.782.A
F.863.A
F.944.A
F.1026.A
F.1108.A
F.1189.A F.1271.A
F.1352.A
F.1434.A
F.1516.A
F.1597.A
F.1434.A
F.1516.A
F.1597.A
F.2843
F.2843
Completed Roof Sections.
Ring Shank Nails
Ring Shank
Nails

Page 14
Assembly Steps for Unicorn Chunky Corner Gazebo 6m x 3m
Step 12.
F.2843.A2x
40mm Ring Shank Nails
12x
20x120x300.A16x
35mm Screw34x
Step 13.
** Avoid splitting timber parts by pre-drilling all screw holes **
•Fix all the remaining Roof Boards F.2843.A using the same principles from the pervious steps.
•Do this for both sides as shown bellow.
•Fix four (4x) 20x120x300.A Trim onto each of the Posts using 2x 35mm screws per Trim.
Congratulations on your new Gazebo !!
Fix Dunster House metal logo
to the post as shown with (2x)
35mm Screws
35mm Screw
64x - 20x120x300.A
F.2843.A
F.2843.A
Diagram illustrates F.2843.A being placed
at the top of the gazebo apex.

Page 15
Assembly Steps for Unicorn Chunky Corner Gazebo 6m x 3m
Plastic Waterproof Membrane:
•Fully cover the roof with the plastic waterproof membrane leaving a minimum of 30mm overhang.
•Use a staple gun or tacks to secure the membrane to the roof boards.
Felt:
•Starting at the lowest edge of the roof, lay the felt horizontally across the roof boards.
•Make sure that the lowest edge of the felt overhangs the eaves edge of the roof by approximately 40-50mm, and by
approximately 50mm on the front and back edges.
•Nail at approximately 200mm intervals.
•Overlap by 200mm if you need to connect two rows of felt.
•Continue laying the next layers of felt and nail into the roof boards at 200mm intervals horizontally and with 300mm
intervals vertically.
•Overlap the layers by 200mm and we recommend you seal any joints using the optional felt lap adhesive.
•Repeat this process on the opposite side of the roof.
IMPORTANT
•When the felt has reached the ridge, fold over a length of felt to cover both sides of the upper layers of felt by 200mm
or more, seal the joints and nail together.
•Make sure to nail the felt on both sides of the ridge.
•Diagrams used for visualisation purposes.
•Quantity of layers of the felt may vary.
(Felt)
Roof Membrane
Cut felt at
and angle Cut felt at
and angle
Roof Membrane
(not supplied)
Second layer Second layer 200mm overlap
200mm overlap
200mm Felt strips 200mm Felt strips
Cut out of felt
Cut out of felt
Use silicone for top
section and ridge parts
Use silicone for top
section and ridge parts
Overhang
Roof Felt
Roof Boards
Waterproof membrane
Minimum
20mm Clout nails

Page 16
Assembly Steps for Unicorn Chunky Corner Gazebo 6m x 3m
Important:
•If your shingles have a peelable plastic backing remove this before installing them to the roof.
•Felt lap Adhesive is an optional extra.
Step 1: Starting on the lowest edge of the roof, place a row of shingles over the top of the roof membrane, place slots
running upwards with the black edge of the shingle overhanging the roof by 15-20mm and nail along the bottom edge
of the tile using 4 nails provided. Carefully trim off any excess at the end of the row and keep any full 'tabs'.
Nails
15-20mm overhang
Shingles
Membrane
Lay a second layer of shingles on top of the first row. This time rotate the shingles 180 degrees so that the slots
are running downwards. Nail through the center band of the tile using 4 nails supplied.
Step 2:
Nails
Second layer of shingles with
the slots facing downwards.
Step 3: Lay the next row of shingles with the slots in the downwards position, offsetting the tiles by half a tab. Secure by
nailing through the center band.
Lay shingles from the center
outwards for more even placement.
20mm Clout nails
•Place membrane over top of roof leaving a 15-20mm overhang on each side. if membrane does not overlap
whole area of roof face overlap a second piece with at least a 20mm overlap. Secure membrane to roof
boards using staple gun.
Membrane:
Apply felt lap adhesive to the underside
of each shingle tab (no amount larger
than 10mm in diameter to each corner).
'1 Tab'

Page 17
Assembly Steps for Unicorn Chunky Corner Gazebo 6m x 3m
Step 4:
Step 5:
Step 6:
Diagrams below are to represent shingle tiles
building up across the roof boards.
Continue to lay the shingles in a row off-set and by overlapping each row until you have reached the ridge. (Use the
off cuts to fill in the spaces at the beginning and end of the rows).
Cut the shingles into three tabs and taper the adhesive edge. Rotate shingles to run parallel with the ridge, gently
bend over the ridge and secure in position with nails. Once all ridge shingles meet at the tip of the roof overlap
shingles and secure into place with nails.
Newly cut ridge shingles
Overlap as shingles build up the ridge. This diagram represents shingle ridges overlapping and
being nailed into place at the tip of the gazebo roof.
Place further shingles across the top ridge of the gazebo using shingles cut out from the previous step. Secure
these into place with nails provided.
Important: Adhesive layer (Bitumen) on the back of the shingles will adhese the shingles together in warm
sunlight.
Dunster House Shingles installation video - https://www.youtube.com/watch?v=IFMFYYSUEUI
Cutting line

Page 18
Assembly Steps for Unicorn Chunky Corner Gazebo 6m x 3m
Important:
•If your shingles have a peelable plastic backing remove this before installing them to the roof.
•Felt lap Adhesive is an optional extra.
Membrane:
Place membrane over top of roof leaving a 15-20mm overhang on each side. if membrane does not overlap
whole area of roof face overlap a second piece with at least a 20mm overlap. Secure membrane to roof boards
using staple gun.
Step 1: Starting on the lowest edge of the roof, place a row of shingles over the top of the roof membrane, place hexagon
shingles running upwards with the black edge of the shingle overhanging the roof by 15-20mm and nail along the
bottom edge of the tile using 4 nails provided. Carefully trim off any excess at the end of the row and keep any full
'tabs'.
15-20mm overhang
Shingles
Membrane
Lay a second layer of shingles on top of the first row. This time rotate the shingles 180 degrees so that the
hexagon shape is now running downwards. Nail through the center band of the tile using 4 nails supplied.
Step 2:
Step 3: Lay the next row of shingles with the Hexagon in the downwards position, offsetting the tiles by half a tab. Secure
by nailing through the center band.
Nails
Nails
Second layer of shingles with
Hexagons slots facing down.
Lay shingles from the center
outwards for more even placement.
20mm Clout nails
Apply felt lap adhesive to the underside
of each shingle tab (no amount larger
than 10mm in diameter to each corner).
'1 Tab'

Page 19
Assembly Steps for Unicorn Chunky Corner Gazebo 6m x 3m
Step 4:
Step 5:
Step 6:
Diagrams below are to represent shingle tiles
building up across the roof boards.
Continue to lay the shingles in a row off-set and by overlapping each row until you have reached the ridge. (Use the
off cuts to fill in the spaces at the beginning and end of the rows).
Cut the shingles into three tabs and taper the adhesive edge. Rotate shingles to run parallel with the ridge, gently
bend over the ridge and secure in position with nails. Once all ridge shingles meet at the tip of the roof overlap
shingles and secure into place with nails.
Cutting Lines
This diagram represents shingle ridges overlapping and
being nailed into place at the tip of the gazebo roof.
Place further shingles across the top ridge of the gazebo using shingles cut out from the previous step. Secure
these into place with nails provided.
Important: Adhesive layer (Bitumen) on the back of the shingles will adhese the shingles together in warm
sunlight.
Dunster House Shingles installation video - https://www.youtube.com/watch?v=IFMFYYSUEUI
Newly cut ridge shingles
Overlap as shingles build up the ridge.

Page 20
Assembly Steps for Unicorn Chunky Corner Gazebo 6m x 3m
•Start with the rear wall of the cabin.
•The guttering pack includes wooden wedges which should be fixed to
the eaves edging using one screw per wedge.
•The outermost wedges should be positioned approximately 200mm
from the ends of the eaves edging, Fig. A. Note - the wooden wedges
are there to create a right angle for the guttering brackets to fix to.
•If the pitch of your roof is very shallow, you do not need to use the
wedges.
•Fix the support brackets to the wooden wedges using two screws per
bracket, Fig. B.
•To install the water butt, connect the stop end outlet to one end of a
length of gutter, and connect a gutter union to the other end.
•Click the gutter into the support bracket nearest to the edge of the
cabin where you would like to position the water butt, Fig. C.
•Fix the gutter union to the wooden wedge with one screw, ensuring
that there is 1 degree of fall towards the water butt to allow the
guttering to drain.
•Connect the next gutter section to the second union and click this
assembly into the first union and screw to the wooden wedge, Fig. D.
•A support bracket should be fitted centrally between the two gutter
unions.
•Mark its position with a pencil, remove the guttering to gain access
and screw into place using a wooden wedge if required, (see point 2).
•Continue adding sections of guttering to fit the length of your cabin,
repeating the previous steps and finish off by connecting the stop end
to the last section of gutter, trimming the guttering to the correct
length where necessary.
•The stop end should finish approximately flush with the end of the
eaves edging, Fig. E.
•Connect the downpipe to the stop end outlet and position the water
butt below the downpipe, with the lid removed.
•Mark and trim the downpipe so it extends into the water butt by
approximately 150mm.
•Note - the hole in the water butt lid will need to be cut out to match
the diameter of the downpipe.
•Once all the guttering components have been positioned correctly
screw the downpipe bracket to the cabin wall, Fig. F.
Fig. A
Fig. B
Fig. C
Fig. D
Fig. E
Running outlet
Downpipe
Water Butt
Downpipe Fixing Bracket (x2)
Support Bracket (x2)
Gutter Union
90 Degree Gutter Angle
Gutter Union Support Bracket
Water Butt
Support Brace
Downpipe
Running outlet
Guttering wedge
Support bracket
Stop end outlet
Gutter union
Stop end
(Guttering)