How to Build Your Own Greenhouse by Roger Marshall

Author:Roger Marshall
Language: eng
Format: epub, pdf
Tags: build a greenhouse;diy construction;growing plants;year-round;year round plants;building;greenhouse;greenhouse plants;greenhouse plans;cold frame;year-round vegetables;growing vegetables year round;gardening;gardening year round;all-year gardening;greenhouse foundation;greenhouse maintenance;heating system installation;building a kit greenhouse;constructing a foundation;conventional greenhouse;slope-sided greenhouse;lean-to greenhouse;garden shed greenhouse;window greenhouse;making a floor plan;hydroponics;construction material;lighting and electricity in greenhouse;caulking and weather stripping;glazing;types of glazing materials
Publisher: Storey Publishing, LLC
Published: 2013-08-05T16:00:00+00:00

Types of Floors

A larger greenhouse (a 12-foot by 20-foot structure is substantial for a hobbyist) is likely to have, along with a poured foundation, a floor that is either a poured-concrete slab (see The Concrete Slab), a floor of brick or slate pavers laid in crushed bluestone or sand, or simply raked pea stone (a mix of stones that are 1⁄4 inch to 1⁄2 inch in diameter).

A Brick, Paver, or Stone Floor

For specific information on pouring a concrete slab, see the following section, Constructing a Concrete Foundation and Slab. For creating a brick or slate floor, the first step is to lay the base, which can be either sand or crushed bluestone. I prefer crushed bluestone because it packs down hard and forms an almost impenetrable layer against weeds. The base should be 3 to 4 inches thick. Lay the material and tamp it down using a heavy flat-ended tamper — a 4-foot length of heavy log will do in a pinch, although you can make a tamper by mounting a heavy piece of lumber on the end of a pole with a hand-grip circumference. The point is to produce a surface that is well compacted and firm. Next, wet the bluestone to help compact it. On top of the bluestone, distribute a layer of sand 1 to 2 inches thick. The bricks, slate, or stone will be laid onto this surface, allowing you to adjust the grade level without disturbing the bluestone base. If the floor is fashioned of brick or stone, brush sand into the cracks between the bricks or stones and then water everything down again. You will probably have to brush more sand into the cracks after you have watered it, until the cracks between the individual bricks or stones are filled.

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