Mercia Garden Products 03TGCORSE0409-V1 Instruction manual

P 1
03TGCORSE0409-V1
CORNER SUMMERHOUSE SHED EXTENSION
2mm Drill bit
x2 Winter = High Moisture = Expansion
Summer = Low Moisture = Contraction
All buildings should be
erected by two adults
For ease of assembly, you
MUST pilot drill all screw
holes and ensure all screw
heads are countersunk.
For assistance please contact customer care on: 01636 821215
Mercia Garden Products Limited,
Sutton On Trent,
Newark,
Nottinghamshire,
NG23 6QN
www.merciagardenproducts.co.uk
CAUTION
Every eort has been made during the
manufacturing process to eliminate the
prospect of splinters on rough surfaces of the
timber. You are strongly advised to wear gloves
when working with or handling rough sawn
timber.
**Protim Aquatan T5 (621)**
Your building has been dip treated with Aquatan.
Aquatan is a water-based concentrate which is diluted with water, the building has been treated by the
correct application of Aquatan solution and then allowed to dry.
Aquatan is a decorative nish to colour the wood, which is applied industrially to timber fence panels and
garden buildings.
Aquatan undiluted contains: boric acid, sodium hydroxide 32% solution, aqueos mixture of sodium dioctyl
sulphosuccinat and alcohols: 2, 4, 6-trichlorophenol.
Please retain product label and instructions for future reference
General Instructions
BEFORE YOU START PLEASE READ INSTRUCTIONS CAREFULLY
- Check the pack and make sure you have all the parts listed.
- When you are ready to start, make sure you have the right tools at hand (not supplied) including a Phillips
screwdriver, Stanley knife, Wood saw, Step ladder, Hammer and a Drill with 2mm bit.
- Ensure there is plenty of space and a clean dry area for assembly.
LOCATION FOR YOUR GARDEN BUILDING
A minimum of 60cm should be left around the perimeter of your garden building to allow access for
maintenance, annual treatment and to allow air ow around the building.
Where possible you should avoid placing your garden building underneath large trees to prevent the tree
causing damage to the building.
TIMBER
As with all natural materials, timber can be aected during various weather conditions. For the duration of heavy
or extended periods of rain, swelling of the wood panels may occur. Warping of the wood may also occur during
excessive dry spells due to an interior moisture loss. Unfortunately, these processes cannot be avoided but can be
helped. It is suggested that the outdoor building is sprayed with water during extended periods of warm
sunshine and sheltered as much as possible during rain or snow.
Once your garden building has been installed it will need to be treated as soon as possible and annually to
prevent the timber from deteriorating and to waterproof it. This is required to maintain the anti-rot guarantee.
Dip Treated buildings - Require a preservative treatment to protect against rot and decay and a waterproof treat-
ment to prevent water ingress
Pressure Treated buildings - Require a waterproof treatment to prevent water ingress
Log Cabins - Are supplied untreated and require a preservative and waterproong treatment.
BUILDING A BASE
When thinking about where the building and base is going to be constructed:
Ensure that there will be access to all sides for maintenance work and annual
treatment.
Ensure the base is level and is built on rm ground, to prevent distortion. Refer to diagrams for the base
dimensions, The base should be slightly smaller than the external measurement of the building, i.e. The cladding
should overlap the base, creating a run o for water. It is also recommended that the oor be at least 25mm
above the surrounding ground level to avoid ooding.
TYPES OF BASE
- Concrete 75mm laid on top of 75mm hard-core.
- Slabs laid on 50mm of sharp sand.
Whilst all products manufactured are made to the highest standards of Safety and in the case of childrens
products independently tested to EN71 level, we cannot accept responsibility for your safety whilst erecting or
using this product.
For ease of assembly, you
will need a tape measure to
check dimensions of
components.
Measure
under the
head
Measure
overall
length
Screws & Nails Bolts To identify the
xings required
for each step use a
measuring tape.
REGISTER FOR YOUR
ANTI-ROT
GUARANTEE TODAY
PLEASE SCAN HERE:

P 2
03TGCORSE0409-V1
Overall Dimensions:
Width = 1226mm
Depth = 2913mm
Height = 2155mm
Base Dimensions:
Width = 1133mm
Depth = 2800mm
Please retain product label and instructions for future reference
Before assembly
please make sure you have a
suitable base ready to erect your
building
MADE IN GREAT BRITAIN
Building Content
Back Panel
Qty 1
AI-03CORSE0409-BP-V1
Side Panel
Qty 2
AI-03CORSE0409-SPP-V1
Floor
Qty 2
AI-03CORSE0409-F-V1
Roof
Qty 2
AI-03CORSE0409-R-V1
Door
Qty 2
AI-01-11B479X1683-V1
Gable Top Large
Qty 1
AI-03CORSE0409-GTDBL-V1
Door Panel
Qty 1
AI-03CORSE0409-DP-V1
Gable Top Small
Qty 1
AI-03CORSE0409-GTDBS-V1
1234
56 7
8
Fixing Kit
Cover Trim - 12x40x2105mm Qty 2
S1240-2105mm
Cover Trim - 12x40x1915mm Qty 1
S1240-1915mm
Cover Trim - 12x60x1647mm Qty 1
S1260-1647mm
Fascia Trim - 12x95x1143mm Qty 2
S1295-1143mm
Door Trim - 12x60x1040mm Qty 1
S1260-1040mm
Door Trim - 12x60x543mm Qty 1
S1260-543mm
Cover Trim - 12x60x370mm Qty 1
S1260-370mm
Gable Framing 27x44x1345- Qty 2
f2744-1345mmm
Roof Trim 28x28x1143- Qty 2
fs2828-1143mmm
Door block 28x28x140mm Qty 4
fs2828-140mmm
Floor block 28x28x250mm Qty 3
fs2828-250mmm
Pad bolt
PI-07-0035
T-Hinge Qty 4
PI-07-0021
Turn Button Qty 2
PI-07-0034
9
11
10
12
13
14
15
16
17
18
22
21
20
19
Nail Bag
There may be extra screws present in the nail bag
50mm Screw x 70
40mm Screw x 45
20mm Screw x 6
30mm Screw x 60
60mm Screw x 15
Felt Tacks x 150

P 3
Please retain product label and instructions for future reference
Remove transportation blocks from the
bottom of each panel before beginning
assembly. Each Panel should have two
blocks.
Pre Assembly
Pre Assembly
Follow the instructions for the 8x8 corner
Summerhouse (03TGCOR0909DDFW-V1),
however DO NOT attach the Felt,
Rear Cover Trims or the Fascia trims.
Not attaching these parts allows the extension
to be xed in place.
Your building should look as shown.
Step 1
Fix the T-hinges (No.21) to each of the
Doors (No.6) with 4x30mm screws per
hinge, making sure to screw into the
framing or the rear of the Door.
Once to T-hinges are xed into position, lay
the Door Panel (No.1) at on the ground.
Fix the Doors in position using 3x30mm
screws per hinge.
To create a Master and Secondary door, x the
Door Trims (No. 13 & No. 14) to one of the
doors overlapping with the other door
as shown using 3x20mm screws per trim.
6x20mm Screws
28x30mm Screws
1
13
14
21
6
30mm
screw
Pre drill
hole
20mm
screw
Step 2
Place one Floor Panel (No. 4) at and
place the three Floor Blocks (No. 17)
evenly between each oor bearer
as shown. Place the second Floor
Panel (No.4) in line with the rst.
Fix the Floor Blocks onto the Floor
Panels using 2x30mm screws per block.
6x30mm Screws
Pre drill
hole
30mm
screw
4
4
17

P 4
Please retain product label and instructions for future reference
Step 3
Place the Floor (No.4) up against
the Corner Summerhouse on
a at, level surface. Fix into
position using 6x60mm screws
as shown.
6x60mm Screws
**To position the side shed on the
right, position the oor on the
right and x in the same way shown.
4
Pre drill
hole
60mm
screw
Step 4
**To position the side shed on the
right, you do not need to alter the
under hang framing.
Cut down the underhand framing (X)
by 70mm on both ends. It may be
necessary to re-attach the framing
and attach the rest of the side shed
following the same steps.
Fix the side of the Door Panel (No.1)
against the side of the 9x9
Corner Summerhouse Window
Panel as shown using
4x60mm screws.
Do not secure the building
to the Floor until the roof is tted.
4x60mm Screws
Pre drill
hole
60mm
screw
1
X
Step 5
Fix the side of the Back Panel (No.2)
against the side of the 9x9 Corner
Summerhouse Back Panel as shown
using 4x60mm screws.
Do not secure the building to the
Floor until the roof is tted.
4x60mm Screws
Pre drill
hole
60mm
screw
2
For assistance please contact customer care on: 01636 821215
Mercia Garden Products Limited,
Sutton On Trent,
Newark,
Nottinghamshire,
NG23 6QN
www.merciagardenproducts.co.uk

P 5
Please retain product label and instructions for future reference
Step 6
Fix the side of the Door Panel (No.1)
against one Side Panel (No.3) and the
Back Panel (No.2) against the
other Side Panel (No.3) using
6x50mm screws as shown.
Secure the two Side Panels
(No.3) central bearings
together using
4x50mm screws, ensuring
to stagger the screws so they
do not collide.
*9x9 Corner Summerhouse
not shown*
Do not secure the building to
the Floor until the roof is
tted.
10x50mm Screws
Pre drill
hole
50mm
screw
2
1
3
3
Step 7
Place the Gable Tops, small and large
(No.7&No.8) on top of the Side Panel
(No.3), The Large (No.8) against the
Door Panel (No.1), and the Small
(No.7) against the Back Panel (No.2),
slotting the boarding
of the Gables over the top of the
boarding of the side panel as
shown .
Fix with 4x50mm screws
per gable top as
shown inthe diagram.
8x50mm Screws
Pre drill
hole
50mm
screw
7
3
Internal Edge
External Edge
7
8
3
2
1
Step 8
Secure the Gable Tops
(No.7&No.8)in place against
the Door Panel (No.1)
and Back Panel (No.2)
using 2x50mm screws per
Gable Top.
4x50mm Screws
Pre drill
hole
50mm
screw
7
8
1
2

P 6
Please retain product label and instructions for future reference
Step 9
Place the Gable Framing
(No.18x2) on the top of the
Gables, ensuring they are ush
with either end of the gables,
leaving a gap between the two
piece of framing as shown.
Fix with3x50mm screws per
Gable Top.
6x50mm Screws
Pre drill
hole
50mm
screw
18 18
18 18
Step 10
Place the two Roof Panels (No. 5) at, in-line
and upside down. Secure them together
along the central bearings
using 6x50mm screws, ensuring to
stagger the screws so they do not
collide.
6x50mm Screws
Pre drill
hole
30mm
screw
5
5
Step 11
Before placing the Roof (No.5) on the
building, place the roof upside down and
attach the Roof Trim pieces (No. 19x2) ush
to the end, perpendicular to the roof
bearers. Fix in place as shown with
4x50mm screws per roof trim.
8x50mm Screws
Pre drill
hole
50mm
screw
5
Step 12
Place the Roof Panel (No.5) on
top of the building, ensure
the Roof Trims (No.19) slot
over each side.
Fix the roof panel onto the
extension using 9x50mm
screws as shown.
Secure the roof to the
Summerhouse roof internally,
using 3x50mm screws through
the roof bearers.
12x50mm Screws
Pre drill
hole 50mm
screw
5
Summerhouse roof
19

P 7
Please retain product label and instructions for future reference
Please retain product label and instructions for future reference
Step 13
Once the Roof is in position, the
extension can be xed in position.
Fix the building in place using
16x50mm screws.
16x50mm Screws
Pre drill
hole
50mm
screw
Step 14
Cut four strips from the roll of felt,
1X2918mm (5), 1x4475mm (4), 1x5254mm (3),
1x4029mm (2) and 1x2004mm (1) in length.
Place felt on top of roof sheet and align as shown
in the diagram, ensuring strip 5overhangs the front
by 50mm and strip 1overhangs the back by 200mm,
with equal spacing at each corner.
*Ensure strip 1 is the rst piece placed down,
then lay sheet 2, then sheet 3, then sheet 4
and nally sheet 5. Make sure each sheet overlaps the
next by at least 100mm, creating a run o.
Use a Fascia as a guide to mark out the angled cuts,
including 50mm overhang.
Cut the sides as shown in the diagram at the dotted lines,
using Fascia width as a cutting guide. Cut the triangle with
50mm overhang, again using a Fascia as a guide.
150x Felt Tacks
Felt
tacks
2004
4029
5254
4475
2918
1000
1000
1000
1000
1000
4
1
2
3
5

P 8
Please retain product label and instructions for future reference
Step 15
Fix the Cover Trims (No. 9x2, No.10,
No.11& No.15) plus the remaining
Cover Trims from the 9X9 Corner
Summerhouse into place using
3x40mm screws per Trim.
15x40mm Screws
40mm
screw
Pre drill
hole
10
99
15
11
Step 16
Fix the Fascia Trims (No. 12x2), plus the
remaining Fascia Trims from the 9x9
Corner Summehouse into place, using
3x40mm screws per Trim.
27x40mm Screws
40mm
screw
Pre drill
hole 12
12
Step 17
Fix two Door blocks (No.16) to the back of
the Doors with 2x30mm screws
per block.
This will allow for the Pad Bolt (No.20) to
be xed on one of the Doors (No.6)
16x30mm Screws
30mm
screw
Pre drill
hole
16
20
Step 18
Fix the two remaining Door blocks (No.16) to
the back of the Doors, one at the top, one at the
bottom with 2x30mm screws per block.
This will allow for two Turn Buttons (No.22) to
be xed to the rear of one of the Doors (No.6),
using 1x30mm screws per block one on the
top block, and one on the bottom.
6x30mm Screws
30mm
screw
6
16
16
22
22
22
16
16
Pre drill
hole

It is ESSENTIAL that you apply wood
treatment immediately after the building
has been assembled.
AFTER TREATMENT:
score around protective
cover on glazing and
carefuly peel
covering back

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4
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