Get your greenhouse started

Close the gap between the seed cataloge and the first shovelful of soil with this attractive, space-saving greenhouse

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Photo by Roger Yip

Like a great vacation, gardening actually starts with anticipation, well before the Canadian climate permits. You can close the gap between the seed catalogue and that first jab of a shovel into soil if you nurture those seeds yourself with a vertical cold frame (or starting greenhouse).

My design can be collapsed and stored after its seasonal work is done, leaving more room for the garden itself. The greenhouse is built of western red cedar; while this wood is pricey, it’s lightweight, warp-resistant and attractive without paint. For durability, exterior-grade screws and nails, stainless-steel staples and outdoor-rated hinges are a must.

Instructions

Part Material Size (T x W x L*) Qty.

Greenhouse frame

Verticals red cedar 1 1/2" x 1 5/8" x 68 3/4" 10
End panel horizontals red cedar 1 1/2" x 1 5/8" x 22 3/4" 4
Back panel horizontals red cedar 1 1/2" x 1 5/8" x 73" 2
Mid-back horizontals red cedar 1 1/2" x 1 5/8" x 34 1/16" 2
End panel shelf supports red cedar 1 1/2" x 1 5/8" x 19 1/2" 8
Floor stringers red cedar 1 1/2" x 3 1/2" x 72" 2

Door frame

Verticals red cedar 1 1/2" x 1 5/8" x 65 1/8" 4
Top/bottom horizontals red cedar 1 1/2" x 1 5/8" x 33 5/8" 4
Mid-door horizontals red cedar 1 1/2" x 1 5/8" x 30 3/8" 2
Door stop strips red cedar 1/2" x 3 1/2" x 72" 1

Top panel

Stringers red cedar 1 1/2" x 1 5/8" x 70" 3
Ends and centre sections red cedar 1 1/2" x 7 1/2" x 26 1/2" 3
Drip edges pine quarter round 3/4" x 3/4" x 73"** 1
Battens pine moulding 1/4" x 1 1/8" x 98'** 1
Prop rods red cedar 3/8" x 1 1/2" x 13" 2
Dowel pegs hardwood dowel 1/4" x 1 3/4" 2

Shelves

Shelf slats red cedar 3/4" x 1 1/2" x 36" 64
Shelf cleats red cedar 3/4" x 1 1/2" x 19 1/4" 16
Centre shelf supports red cedar 1 1/2" x 1 5/8" x 22 1/4" 4
Centre shelf support blocks red cedar 1 1/2" x 1 5/8" x 4" 8
Dowel pegs red cedar 1/4" x 2" 8

Door latches

Door latches red cedar 3/8" x 1 1 /2" x 4 1/2" 2
Spacers pine batten 1/4" X 1 1/2" X 3" strips 2
**Cut as required



* Length indicates grain direction

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Get your greenhouse started

Illustration by Len Churchill

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