Yes. Treated timbers used to construct raised vegetable and flowerbeds are increasingly popular and practical. Recent scientific tests prove that the preservative does not significantly leach into surrounding soil. And treated wood used for tomato stakes, flowerbed edging, planters, retaining walls, trellises, and compost bins have the added advantage of lifetime durability.

The extra durability of pressure treatment makes treated wood the perfect product for building raised beds, terraced gardens, grape or tomato stakes, mushroom trays, vineyard supports, retaining walls, trellises, arbors, garden furniture, compost bins, walkway steps, flower bed edging, or planters. Any assertion that gardeners should not grow edibles in planters or raised beds made with treated wood is without basis. See similar questions...

Screws cannot be hot-dipped galvanised but are generally available in stainless steel. There are other types of coated deck screws on the market for decking. See similar questions...

Only hot-dipped galvanised or stainless steel nails should be used with CCA, CA or ACQ-treated wood. If CCA, CA or ACQ is specified, extended periods of wetting are presumably anticipated, and common nails corrode in wood under moist conditions. Electroplated galvanising is not thick enough to resist the corrosion effects under moist conditions. Stainless steel should be used in areas near salt water. See similar questions...

No. Pressure-treated lumber has a number of characteristics which render it unsuitable for use with the Sukkah Project Kits. The period of exposure to the elements is brief, and does not require pressure-treated wood. Applying an initial coat of water sealant or paint to standard lumber will increase weather resistance, but is not essential. See similar questions...

Treated wood is necessary if the wood is expected to stay wet for extended periods of time or is contact with the ground. Guidelines to define "extended periods" are under development at Forintek. Treated wood is also recommended if wood is used in an area of termite or wood-boring beetle activity. See similar questions...

Treated wood can last virtually as long as you want it to, given the correct specification, quality control and installation. For example, service lives of over 60 years have been documented for treated fence posts in ground contact. However, as with any product, incorrect specification, inadequate quality control or major errors in installation can result in service lives less than expected. See similar questions...

No. The finishing properties of wood treated with waterborne preservatives such as CCA or borate depend primarily on the wood properties, not the preservative treatment. However, you'll get more life out of your wood finishes, and especially stains, when you're using CCA-treated wood. CCA-treated wood contains chromium, which is known to decrease the effects of weathering. The effects of the newer preservatives (CA and ACQ) are unclear. See similar questions...

The outside of a wooden hot tub doesn't require any type of treatment and nothing is required to extend it's lift. If desired for an aesthetic look, painting, staining or some other finish can be applied to match a surrounding deck. Nothing should be applied to the inside of the hot tub. See similar questions...

Our wood is kiln dried, not treated. Kiln drying is a process of heating the boards to reduce the amount of moisture to less than 10 percent. Kiln drying helps prevent the boards from cracking and warping after installation. For more information about MAR-K bed wood and the different options available, see our Online Catalog. See similar questions...

Absolutely! UV Plus for Pressure Treated Wood is an excellent choice for almost any exterior wood surface, including vertical surfaces. It can be used on siding, log homes, and wooden shakes. Make sure the surface is clean, dry, and any previous coatings have either weathered away or been removed. Do not use UV Plus for Pressure Treated Wood over paints or other film forming coatings, it's designed to penetrate into bare or weathered wood surfaces. See similar questions...

Yes. But be cautioned that Shingle Shield is designed specifically for use with three tab shingles. The installer assumes complete responsibility as to how to attach the product to a wood roof. The primary objective is to have rain water run over Shingle Shield, then onto the areas affected by fungus, moss, or algae. See similar questions...

Yes, but be aware of woods that have an inherent high level of natural oils, such as teak and kiaat. With milk paint being a water-based paint, there is an expected aversion to oil, including naturally oily woods and pre-treated timber. See similar questions...

The heartwood of naturally durable species such as western red cedar, yellow cypress and white cedar will all resist decay to some degree, but it is variable. The amount and type of natural fungi-toxic chemicals deposited in the heartwood determine how durable the wood is. The sapwood of all species is considered non-durable. Heartwood of second growth may be less durable than the best of the old growth but probably less variable. See similar questions...

If you are shopping for treated lumber at a do-it-yourself retail centre, you may be confused by the choices and store staffers may not know much more than you do. Whether the treated wood on display is green, brown, or bears a brand name, it's all been treated with a copper-based preservative. The brown products have merely been coloured to mask the greenish tone of the preservative. See similar questions...

We do not make our products in pressure treated wood as it tends to crack and warp, due to the extra moisture content often present after the pressure treating process. There are a couple of good alternatives: Cellular PVC and Cypress. Please see Wood Choices to research these options. See similar questions...

EPA has factsheets about disposing of treated wood, including Questions & Answers about wood treated with chromated copper arsenate. See similar questions...

In a word, NO. PT wood is used for it's resistance to insects and decay, but it gets these properties through the use of modern science. It contains arsenic as well as insecticides, fungicides and solvents. When burned these are released into the air in the smoke. It is not fit for man nor beast! See similar questions...

Wood is a plentiful and economic building material that comes from a renewable resource. However, untreated wood is subject to attack by insects, micro-organisms, and decay by fungi. To ensure structural soundness and long service life, wood must be protected from its natural predators. This is especially important in hot and humid climates or wherever wood comes into contact with ground or water, since wood is subject to decay and attack. See similar questions...

No. The Environmental Protection Agency (EPA) conducted an extensive eight-year study where it determined that the benefits of pressure-treated wood products outweighed any potential risks. Responsible questions by concerned individuals, government officials, and legitimate scientists have resulted in ongoing research programs and study of treated wood products. These studies have produced-and continue to produce-data that support the safety of these products. No. See similar questions...