Summary: Learn how to build a greenhouse, prepare the ground, erect a greenhouse structure and glaze a greenhouse.
A greenhouse should be located in an area of the garden that receives the most sunlight in winter. The ground on which the greenhouse is going to stand must be firm, level and free from vegetation.
When choosing your greenhouse, consider the type of foundation it will need, as you may have to lay concrete to create a firm base. If this is the case refer to the project on laying concrete outdoors. Alternatively, you can buy a greenhouse kit that has its own base, which we look at here.
Lay the base section in position ensuring that it is level and square.
Sink the anchors into the concrete until the base is level with the ground and make sure it remains level and square.
When building the greenhouse structure do not over-tighten the bolts. At this stage you just need to tighten them to hold the sections together.
Slip rubber glazing strips into the glazing bar channels to protect the glass or plastic panes.
Using the W-shaped glazing clips supplied, fix the roof panes in position first
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