Hill Lumber’s narrow garden shed

narrow garden shed made out of standard fence materials

A 1m x 1.8m narrow garden shed made out of standard fence materials

A Hill Lumber project  By Les Kenny

Made mostly out of inexpensive rough-sawn readily available fencing timber.
Simply a solid wooden fence wrapped around a floor with a pitched roof dropped on it.

This document comprises of three sections…

Section 1. Instructions
Section 2. Material list and Plans
Section 3. Additional detail

About it

The shed is around 1800mm wide by 1080mm deep and stands 2200mm high.
It is constructed out of standard 150x19x1800 fence palings, 150x25x1800 fence palings, 75×50 fence rail, and a sheet of 12mm plywood.

The required materials list is in section 2.1.

Section 1.1 Making the floor

narrow garden shed floor and sub-floor

Make the floor frame out of 75×50 fence rail to the dimensions above.
Cover with 150×25 fence palings. 8 @ 1800 long. Cut the lengths to suit.
Turn the floor upside down and fix the 100×100 bearers to the joist, 150mm in from each end.

Section 1.2 Making & standing the walls

narrow garden shed wall construction

Section 1.2.1 Making the side walls

narrow garden shed side wall construction

Each side wall comprises of 6 150x19x1800 fence palings and 5 50x19x1800 battens which cover the joins.
The palings are nailed to 75×50 rails.
Make up the walls according to the drawings above and the plans.

Take note: The width of a side wall is 1040mm. The length of the rails are 1000mm. That means that the rails are 20mm less (each side) than the width of the wall.
Note: This only applies to the side walls.

Nail the verticals (palings and battens) to the rails.
Make the top rail flush with the top of the wall. Make the bottom rail up 50mm from the bottom of the wall, and make the middle rail centered between the two.

The rails are rebated each end. It is important that the rebates are as shown in the drawings (i.e. facing up or down) and it is important that all the rails are spaced the same on all the walls.
It could be well worth making a template for the rails.

For wall nailing detail go the section 3.1
For rail rebate detail go to section 3.2

narrow garden shed side wall constructionHow to rebate the ends of the rails? Go to section 3.2

Note: Rip (cut lengthwise) the battens out of the palings. Each paling will make 3 battens.
You will need 33 battens from 11 palings.
If you purchase the battens separately (already to size), then deduct 11 palings from the shopping list.

Section 1.2.2 Making the rear wall

narrow garden shed side wall construction

The rear wall comprises of 11 150x19x1800 fence palings and 10 50x19x1800 battens which cover the joins.
The width of the wall is 1750mm, and the length of the rails are also 1750mm.
The palings are nailed to 75×50 rails.
Make up the walls according to the drawings above and the plans.

Nail the verticals (palings and battens) to the rails.
Make the top rail flush with the top of the wall. Make the bottom rail up 50mm from the bottom of the wall, and make the middle rail centered between the two.

The rails are rebated each end. It is important that the rebates are as shown in the drawings (facing up or down) and it is important that all the rails are spaced the same on all the walls.

For wall nailing detail go the section 3.1
For rail rebate detail go to section 3.2

narrow garden shed side wall constructionHow to rebate the ends of the rails? Go to section 3.2

Section 1.2.3 Making the front wall

narrow garden shed front wall construction

Make up the front wall to the dimensions in the drawing above.
Note that the rails are rebated each end. It is important that the rebates are as shown in the drawings (facing up or down).

How to make it

how to - the narrow garden shed front wall construction

1.) On a flat surface make up the frame. Fix a temporary spreader to the bottom of the frame to hold the door frame studs 810mm apart.
2.) Fix the 150x19x1800 boards to the frame as shown in the drawing.
3.) Fix the 50x19x1800 battens to the boards as shown in the drawing. Add the 150×19 infills for the hinges.

For nailing detail go the section 3.1
For detail on rebating the rail go to section 3.2

Section 1.2.4 Standing the walls

narrow garden shed walls being stood

The bottom rail of any wall will sit on the floor and the wall boards will run past the floor boards against the floor frame.

The rebates in the rails of one wall should fit into the rebates in the rails of its adjacent wall.

Of course that’s only if all the rebates are facing as meant to be (according to the drawings) and the rails on all walls are spaced the same.I.e., the top rail is flush with the top of the wall, the bottom rail is up 50mm from the bottom of the wall, and the middle rail is centered between the two.
Make all the rails the same distance apart on all the walls.

Section 1.3 Making the roof

narrow garden shed roof construction
narrow garden shed roof plan

Section 1.3.1 Making the roof instructions

narrow garden shed roof construction drawings

All frame lumber is 75×50. The plates are on the flat, the rest of the framing is on its edge.

1.) Referring to the plans and drawings make up the front and back roof frames comprising of the rafters and the front and back plates.
2.) Space them with the side plates and the ridge beam, fix together with nails.
3.) Add the purlins as shown in the plans and drawings.
4.) From a standard 2400 x 1200 sheet of plywood cut two pieces 1200 x 1070 long. Cut the top edge (the edge running across the apex of the roof frame) angled back 18.4 degrees.
Fix one piece to one side of the frame with the top of the sheet in line with the apex of the roof frame.
5.) Add the other side.

Section 1.3.2 Placing the roof

narrow garden roof placing detail

Sit the roof on top of the walls so that it is evenly placed all around.
Tie it down with 150mm long metal strap fixed to the roof plate and the top wall rail, inside the shed.
Allow three straps along the inside of the front wall and the same with the back wall.

narrow garden roof gables

Next add board and battens to the gable. Have them hang down past the roof frame 30mm.
You may have to measure and cut each piece individually.

Section 1.4 Making and hanging the door

narrow garden shed door making and installation

narrow garden shed door

Referring to the plans and drawings above, make the door frame on a flat surface and then nail the boards and battens onto the fame. That’s the door.
Place the door in the door hole and pack it so there is an even gap all the way around.
Then fix the hinges and the locking/pad bolt in place.

Section 1.5 Apply angle flashing or timber strips

narrow garden shed with weatherproof flashing

Apply angle flashing or strips of wood up the four corners and across the apex of the roof.
You will need a little less than 10 meters in total.

Section 2.1 The Materials List

FLOOR & SUB-FLOOR
100×100 fence post: 1 @ 2400
75×50 fence rails: 2 @ 4800
150×25 fence palings: 8 @ 1800

WALLS AND DOOR
75×50 fence rails: 5 @ 4800
150×19 fence palings: 46 @ 1800

ROOF
75×50 fence rails: 3 @ 4800
150×19 fence palings: 4 @ 1800
12mm plywood sht (exterior): 1 @ 2400×1200

Note: Rip (cut lengthwise) battens from palings. Each paling will make 3 battens. You will need 33 battens from 11 palings. This has been allowed for in this materials list.

Altogether (the shopping list)

WOOD
1 only R/S 100x100x2400 fence post
10 only R/S 75x50x4800 fence rails
8 only R/S 150x25x1800 fence palings
50 only R/S 150x19x1800 fence palings
1 only 12mm plywood sht (exterior) 2400×1200

NAILS
500g of 50mm flat head galvanised nails
1.5kg of 60mm flat head galvanised nails
500g of 75mm flat head galvanised nails
500g of 90mm flat head galvanised nails

YOU WILL ALSO NEED
10 metres of angle flashing or timber strips
2 only 200mm Tee hinges
1 only 100mm pad bolt
3 only 25mm metal strap 300mm long

Section 2.2 The Plans

narrow garden shed plans

Section 3.1 Nailing detail

The floor

Use 90mm flat head nails to nail the frame together and 75mm flat head nails to nail the floor boards to the frame.

The walls

narrow shed nail detail

1. For weather proofing you will need to add a row of nails between the rails. (see 1. in the drawing above). hence the nails will go through the batten and paling, but there will be no rail to fix to.
So… use a nail slightly longer than the thickness of the batten and paling combined (in this case a 50mm nail) and bend the protruding nail point over. This will lock and hold the batten to the paling.

2. Using 60mm nails (providing the battens and palings are less than 20mm thick each), nail through the batten and paling into the rail.
Refer to the drawing above for detail and placement of the nails.

The roof

Use 90mm nails to make up the roof frame and use 50mm nails to fix the plywood cover the roof frame.

Note: All nails used in this project are flat head and galvanised.

Section 3.2 How to rebate the ends of the rails

narrow shed rail rebate detail 1

Clamp any number of rails together with the ends flush.
Draw a line across the top of the rails 50mm in from the end (that is the same thickness as the wood you are using).
Draw a line across the ends, half way down. That is the depth you are going to cut to.
The two lines mark the cut-out (rebate) area.

narrow shed rail rebate detail 2

Set the blade on your circular power saw to the required depth (the depth line across the ends, which is half way down).
Then make multiple saw cuts across the cut-out (rebate) area.

narrow shed rail rebate detail 3

It is then simply a matter of cleaning out the rebate with a hammer and sharp chisel.

narrow shed rail rebate detail 4

About the author
Les Kenny with a background in building, has been authoring DIY projects for his website www.buildeazy.com since 2001. He wrote two “DIY for Kids” books (co-authored with his daughter Roseanne) published in 2004 and 2005 respectively by Harpercollins.
www.buildeazy.com is populated with his work.
This content was authored specifically for Hill Lumber. © All rights reserved

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