Dunster House H3-GS3X6 User manual

INSTALLATION MANUAL
FOR
Utopia Garden Shelter
3m x 6m
H3-GS3X6
Unique product reference number
.........................................................................
http://www.dunsterhouse.co.uk
Dunster House Ltd.

Queries Procedure
Important Information
Please retain all documentation with regards to your purchase.
In the unlikely event that you need to contact us, please do so in writing to:
Email: [e-mail]
Post: FAO Customer Services, Dunster House Ltd - Factory 1, Caxton Road, Bedford, MK41 0LF
Our Customer Services department is open 9:00 - 17:00, Monday to Friday. Please include your Sales Order number
starting with SO or your postcode so we can locate your order.
The nature of timber
The timber provided for this product is a soft wood which has been kiln dried and is pressure treated for protection
against rot and insect infestation.
Timber is a natural product and inherent properties can include knots, knot holes, imperfections, cracks and warping.
Due to the inherent properties of timber we make no guarantees that the timber you receive for your product will be
free from these natural properties. We will not replace any components for any of the following reasons:
•Timber that contains knots where they do not influence the structural stability of the product
•Cosmetics appearances - colour variations
•Timber that has shakes, cracks, gaps or sap which do not influence the structural strength of the product
•Timber that has been covered or buried underground
•Twisted timber that can be installed
•Queries arising from a neglectful manner during assembly or as a result of incorrect assembly
•Queries due to modifications by the owner causing the timber to deform
Any valid queries will be satisfied by the exchange or replacement of the defective parts only on a supply only basis.
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 be taken in order to prevent such discolouration.
Assembly Preparation
This product has been designed for self-assembly and recommend that assembly is carried out by two DIY competent
people. It is important that the assembly instructions are followed carefully and we recommend that the assembly
instructions are read through in their entirety prior to assembly to allow you to familiarise yourself first.
We recommend ensuring that the product is assembled in an appropriate location and on an appropriate base for
the product. It is imperative that the product is installed square, level and plumb.
To assemble your product we recommend that you have the following:
•Stepladder
•Drill and 3mm drill bit
•Spirit level
•Tape measure
•Screwdriver
•Rubber mallet
•Gloves - if you wish for extra protection when handling pressure treated timber
All screw holes need to be pre-drilled using a 3mm drill bit (not provided) to avoid timber splitting.
Pressure treated products do not need to be treated immediately or have a timber preservative applied.
Pressure treatment does not mean that the timbers are waterproof, so you may wish to apply a water repellent.
Page 1

70x35x350.C
10x Post trim
70x35x650.C
12x Post braces
70x70x1900.B
4x Wall post
86x43x2965.A
4x Roof support
86x43x3000.C
2x Roof support
70x35x1600.B
2x Roof brace
70x35x1603.B
4x Purlin 'C'
70x35x1603.A
6x Purlin 'B'
86x43x2119.A
4x Purlin 'A'
70x70x1900.D
2x Wall post
86x43x1566.A
2x Purlin 'D'
650
70
35
35
70
350
Page 2
Component details for Utopia Garden Shelter
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
1900 70
70
2965
81
43
3000
81
1600 35
70
43
1603
1603
70
35
35
7086
43
2119
1900
70
70
1566
86
43

70x35x2965
1x Purlin 'E'
70x35x1680.A
2x Roof cover board
70x35x2370
3x Temporary post
70x35x2400.C
4x Roof cover board
70x35x2930.A
1x Roof cover board
SHIPx248.B
2x Roof board 1
SHIPx457.A
2x Roof board 1
SHIPx665.B
2x Roof board 1
SHIPx874.A
2x Roof board 1
SHIPx1083.A
2x Roof board 1
SHIPx1291.A
2x Roof board 1
Page 3
Component details for Utopia Garden Shelter
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
2965
35
70
1680
35
70
2370
35
70
2400
2930
30
70
30
70
248
457
665
874
1083
1291 15
121
15
121
15
121
15
121121
15
15
121

SHIPx1500.B
2x Roof board 1
SHIPx1708.B
2x Roof board 1
SHIPx1917.B
2x Roof board 1
SHIPx2126.A
2x Roof board 1
SHIPx2334.B
2x Roof board 1
SHIPx2543.A
2x Roof board 1
SHIPx2751.A
2x Roof board 1
SHIPx2960.B
2x Roof board 1
SHIPx3169.A
2x Roof board 1
SHIPx1583.A.L
2x Roof board left
SHIPx1687.A.L
2x Roof board left
SHIPx1791.A.L
2x Roof board left
SHIPx1896.A.L
2x Roof board left
Page 4
Component details for Utopia Garden Shelter
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
1500
1708
1917
2126
2334
2543
2751
121
15
121
15
121
15
121
15
121
15
121
15
121
15
2960
3169
15
121
121
15
1583
121
15
121
15
15
15
121
1896
1791
1687
121

SHIPx2000.A.L
2x Roof board left
SHIPx2104.A.L
2x Roof board left
SHIPx2205.A.L
2x Roof board left
SHIPx2313.A.L
2x Roof board left
SHIPx2417.A.L
2x Roof board left
SHIPx2521.A.L
2x Roof board left
SHIPx2626.A.L
2x Roof board left
SHIPx2730.A.L
2x Roof board left
SHIPx2834.A.L
2x Roof board left
SHIPx2939.A.L
2x Roof board left
SHIPx3043.A.L
2x Roof board left
SHIPx1583.A.R
2x Roof board right
SHIPx1687.A.R
2x Roof board right
Page 5
Component details for Utopia Garden Shelter
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
2000
2104
2205
2313
2417
2521
2626
2730
2834
2939
121
15
121
15
1687
1583
3043
121
15
121
15
121
15
121
15
121
15
121
15
121
15
121
15
121
15
121
15
15
121

SHIPx1791.A.R
2x Roof board left
SHIPx1896.A.R
2x Roof board left
SHIPx2000.A.R
2x Roof board left
SHIPx2104.A.R
2x Roof board left
SHIPx2205.A.R
2x Roof board left
SHIPx2313.A.R
2x Roof board left
SHIPx2417.A.R
2x Roof board left
SHIPx2521.A.R
2x Roof board left
SHIPx2626.A.R
2x Roof board left
SHIPx2730.A.R
2x Roof board left
SHIPx2834.A.R
2x Roof board left
SHIPx2939.A.R
2x Roof board right
SHIPx3043.A.R
2x Roof board right
Page 6
Component details for Utopia Garden Shelter
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
1791
1896
2000
2104
2205
2313
2417
2521
2626
2730
121
15
121
15
3043
2939
2834
121
15
121
15
121
15
121
15
121
15
121
15
121
15
121
15
121
15
121
15
15
121

70x35x850.C
4x Roof brace
70x35x850.CM
4x Roof brace
Page 7
TABLE
Description QTY
50mm screws 6
70mm screws 168
90mm screws 40
50mm nails 500
M10 x 90mm Hex Bolt 4
M10 x 20mm Washer 8
M10 Nut 4
Installation instruction 1
Please note!
Before you start assembling this garden shelter, you need to prepare a correct
foundation. Only a completely leveled load bearing foundation will ensure a stable
and problem free installation, especially when aligning the door and windows.
Read the whole manual including 'post installation' page, before starting installation
of the summerhouse.
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
Component details for Utopia Garden Shelter
848.5
848.5
70
35
35
70

Installation Manual for Utopia Garden Shelter
Page 8
Start by assembling the main frame for the Utopia Garden Shelter.
At the notched end of Wall posts (4x 70x70x1900.B, 2x 70x70x1900.D) fix Roof supports (4x 86x43x2965.A,
2x 86x43x3000.C) in the positions shown using 2x 70mm screws per end. Ensure that the notch is facing inwards
for all six wall posts before fixing and the distance between wall posts (70x70x1900.B) and (70x70x1900.D) is
2860mm.
We recommend to secure the gazebo legs to the ground using metal brackets, metal connectors etc. (not supplied).
Once the frame is assembled fix the Post braces
(12x 70x35x650.C) in the positions shown
using 3x 70mm screws and 1x 90mm screw
per component.
Step 1 - Assembling shelter frame
To avoid splitting timber, please pre-drill all holes before screwing throughout the installation.
Step 2 - Fixing Post braces
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
Make sure notches on
wall posts (70x70x1900.B)
are facing inside the Shelter
70mm Screws
70mm Screw
90mm Screw
70mm Screws
70mm Screws
No overlap
Flush with top
of wall post
2
8
6
02
8
6
0
70x70x1900.B
70x70x1900.B
70x70x1900.D
70x70x1900.B
70x70x1900.B
70x70x1900.D
86x43x3000.C
86x43x2965.A
86x43x3000.C
70x35x650.C
70x35x650.C
70x35x650.C
70x35x650.C
70x35x650.C
70x35x650.C

Installation Manual for Utopia Garden Shelter
Page 9
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
Fix purlins 'B' (2x 70x35x1603.A) to the middle of roof supports (83x43x3000.C) using 2x 70mm screws per end, so
that they are flush with each other. At the opposite end of the purlin attach purlin 'E' (70x35x2965) by screwing diagonally
through both purlins using 1x 90mm screw. Next position purlin 'B' (4x 35x35x1603.A) as shown below, screw them to roof
supports (86x43x2965.C) and to the purlin 'E' (70x35x2965).
Step 3 - Assembling Purlins
90mm screws
70mm screws
70x35x1603.A
70x35x1603.A
70x35x1603.A
70x35x1603.A
70x35x2965
86x43x2965.A
86x43x3000.C
86x43x3000.C
70mm screws
70mm screws
70mm screws
70mm
screws
70mm
screws
Fix purlins 'C' (4x 70x35x1603.B) to the Roof supports (86x43x2965.A) and purlin 'E' (70x35x2965) using 2x
70mm screws per end, so that they are flush with each other. Then position purlins 'D' (2x 86x43x1566.A) on
the top of the wall posts (70x70x1900.D) and fix the to the wall posts using 2x 90mm screws and 1x 90mm screws to
fix them to the purlin 'E' (70x35x2965). Now position roof braces (2x 70x35x1600.B) so holes align with holes in purlins
(70x35x1603.B) and then connect them with M10 x 90mm Bolts, M10 x 20mm washers and M10 nuts. Look and the
diagrams bellow for reference.
70x35x1600.B
70x35x1600.B
70x35x1603.B
70x35x1603.B
70x35x2965
86x43x1566.A
86x43x1566.A
M10 x 90mm bolt
M10 Nut
Place 1x M10 washer on either side
of the timber when securing the M10 bolt.
70x35x1603.B
70x35x1603.B
70x35x1600.B
70mm screws
90mm screws
70mm screws
70mm screws
90mm screws
70mm screws

Installation Manual for Utopia Garden Shelter
Page 10
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
Step 3 - Assembling Purlins
Fix purlins 'A' (4x 86x43x2119.A) to the wall posts (70x70x1900.B) and the purling 'E' (70x35x2965) using
90mm screws. Repeat this process in all four corners. Fix roof braces (4x 70x35x850.C and 4x 70x35x850.CM) in the
positions shown (8 places), using 70mm screws.
90mm screws
70mm screws
70mm
screws
70mm screws
70x35x850.C 70x35x850.CM
86x43x2119.A
90mm screws
90mm screws
86x43x2119.A
70x35x2965
86x43x2119.A
86x43x2119.A
86x43x2119.A
70x70x1900.B
70x70x1900.B
70x35x2965
86x43x2119.A
86x43x2119.A
70x35x2965
70x70x1900.B
70x70x1900.B
70x35x850.CM
70x35x850.C
70x35x850.CM
Position temporary posts (3x 35x70x2370) underneath purlin (70x35x2965) and fix them by screwing at angle with 2x
50mm screws per post.
70x35x2370
70x35x2370
70x35x2370
50mm screws
70x35x2965
86x43x1566.A
70x35x2370

Page 11
Use 2x 50mm long nails per connection with roof joist. Equally space out the Roof boards and fix by nailing through the
shiplap and into the purlins and roof braces. Repeat this process on opposite side of the roof.
Step 4 - Fixing Roof boards 1
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
Step 5 - Fixing Roof boards right
SHIPx248.B
SHIPx457.A
SHIPx665.B
SHIPx874.A
SHIPx1083.A
SHIPx1291.A
SHIPx1500.B
SHIPx1708.B
SHIPx1917.B
SHIPx2126.A
SHIPx2334.B
SHIPx2543.A
SHIPx2751.A
SHIPx2960.B
SHIPx3169.A
SHIPx1583.A.R
SHIPx1687.A.R
SHIPx1791.A.R
SHIPx1896.A.R
SHIPx2000.A.R
SHIPx2104.A.R
SHIPx2205.A.R
SHIPx2313.A.R
SHIPx2417.A.R
SHIPx2521.A.R
SHIPx2626.A.R
SHIPx2730.A.R
SHIPx2834.A.R
SHIPx2939.A.R
SHIPx3043.A.R
Use 2x 50mm long nails per connection with roof joist. Equally space out the Roof boards and fix by nailing through the
shiplap and into the purlins and roof braces. Repeat this process on opposite side of the roof.

Page 12
Step 6 - Fixing Roof boards left
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
Step 7 - Fixing Post trims
SHIPx1583.A.R
SHIPx1687.A.R
SHIPx1791.A.R
SHIPx1896.A.R
SHIPx2000.A.R
SHIPx2104.A.R
SHIPx2205.A.R
SHIPx2313.A.R
SHIPx2417.A.R
SHIPx2521.A.R
SHIPx2626.A.R
SHIPx2730.A.R
SHIPx2834.A.R
SHIPx2939.A.R
SHIPx3043.A.R
Fix '70x35x350.C' to the bottom of the gazebo posts.
On the base of the main support posts, fix 2x '70x35x350.C' to each post on the outside of the gazebo. The
angled end of this component needs to be pointing upwards. Use 2x70mm screws per component to fix into
position.
For the middle support post, fix 1x '70x35x350.C' to the posts on the outside of the gazebo. Use 2x70mm screws
per component to fix into position.
Use 2x 50mm long nails per connection with roof joist. Equally space out the Roof boards and fix by nailing through the
shiplap and into the purlins and roof braces. Repeat this process on opposite side of the roof.
70x35x350.C
70x35x350.C
70x35x350.C
70x35x350.C
70x35x350.C
70x35x350.C

Page 13
Step 8 - Fixing the Shingles
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
Step 9 - Fixing the Shingles
Once you have fixed the bottom row of shingles (with the cut outs pointing towards the roof) you can now fully
cover the roof of your gazebo with shingles.
All of the strips of shingles will now have the cut outs pointing towards the ground.
Start by fixing the shingle strips directly on top of the bottom rows that were fixed in the previous step, until your
gazebo resembles the diagam.
Roof Membrane
Fully cover the roof with plastic waterproof membrane leaving a minimum of 30mm overhang. Use a staple gun or tacks to
secure the membrane to the roof boards.
Shingle Installation
When fixing shingles, you will be required to position and fix the bottom row with the cut-outs pointing towards the top of
the roof.
Please overhang the shingles from the edge of the roof boards by approximately 50mm
Repeat this process on all 4 sides of the gazebo.
50
Top of roof
For the bottom row of shingles, the cut outs on each strip of
shingles need to be pointing towards the top of the roof.

Page 14
Step 10 - Fixing the Roof Trims
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
70x35x2400.C
70x35x1680.A
70x35x2400.C
70x35x2930.A
Finally, fix 4x'70x35x2400.C' 2x'70x35x1680.A' and 1x'70x35x2930.A' in the positions shown using 4x 70mm screws
per component. Screw through the individual components and into the purlins.

page 15
Components required:
Roll of felt
10mm clout nails
Roof Membrane
Fully cover the roof with plastic
waterproof membrane leaving a
minimum of 30mm overhang.
Use a staple gun or tacks to
secure the membrane to the
roof boards.
Felt - Step 1 of 4
Starting at the lowest edge of
the roof, cut the 1st layer of felt
at an angle alongside the ridge
(Fig. 1). Overhang the felt at the
bottom of the roof by
approximately 30mm (Fig. 2).
Use 10mm clout nails at
approximately 50mm centers for
the bottom row, the upper rows
at 200mm centers horizontally
and 300mm centers vertically,
up to the top of the 1st layer of
felt.
Utopia Garden Shelter 3m x 6m Installation Manual
Fig. 2
Felt
30
Roof Board
Cut felt at
an angle
1st Layer
Fig. 1
Top of 1st layer of root felt
Lowest edge
Fig. 3
2nd
Layer
200mm overlap of 1st layer of felt
Top of 1st layer of felt
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
Felt - Step 2 of 4
Continue laying down the 2nd layer of felt,
overlapping the 1st layer of felt by 200mm.
Use 10mm clout nails at approximately 50mm
centers for the bottom row, the upper rows at 200mm
centers horizontally and 300mm centers vertically, up
to the top of the 2nd layer of felt. (Fig.3).

page 16
Utopia Garden Shelter 3m x 6m Installation Manual
Fig. 4
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
Felt - Step 3 of 4
For each of the 4 ridges, cut a length of felt in half
and nail alongside the ridge, overlapping by
approximately 250mm. Use 10mm clout nails at
approximately 50mm centers (Fig. 4). Trim as
required, should you wish.
Felt - Step 4 of 4
Then cut a rectangular piece of felt and attach the cut out felt
on the top of the roof, covering all joints between the ridge felt
strips. Use 10mm clout nails at approximately 50mm centers on
all 4 sides, (fig.5).
1st layer
of felt
2nd layer
of felt
Roof
felt ridge
Fig. 5
Rectangular felt
for roof ridge

Page 17
All dimensions are approximate and subject to the limitations of the material used and the methods of manufacture
Utopia Garden Shelter 3m x 4m
Full Height Wall Panel Assembly
•Position the solid wall panels between Posts as shown in the diagram bellow.
•Connect Panels to posts using (6) 70mm Screws. (Repeat this process dependant on how many panels have been
purchased).
•Position a further set of panels directly above previously secured panels and connect using (2) 70mm Screws as
shown in the diagram bellow. (Repeat this process dependant on how many Panels have been purchased).
•Connect Panels to posts using (6) 70mm screws.
70mm Screw
70mm Screws 70mm Screws
•3m Solid Wall Panel
•2m Solid Wall Panel
•70mm Screws

Page 18
Half Height Solid Wall Panel 2m
2m Solid Wall Panel
Pressure Treated
1859.5
850
910
1860 70
35
70x35x1860 - x2
Pressure Treated
875 15
121
15x121x875 - x14
Pressure Treated
19x19x877 - x8
Pressure Treated 877 19
19
70x35x780 - x3
Pressure Treated
780 70
35
19x19x741 - x8
Pressure Treated
741 19
19

Page 19
Half Height Solid Wall Panel 2m
3m Solid Wall Panel
Pressure Treated
70x35x2860 - x2
Pressure Treated
15x121x905 - x21
Pressure Treated
19x19x905 - x12
Pressure Treated
19x19x741 - x12
Pressure Treated
70x35x780 - x8
Pressure Treated
2860
850
941
2860 70
35
905 15
121
905 19
19
741 19
19
780 35
70