Drywall is a panel made of gypsum plaster pressed between two thick sheets of paper. It is used to make interior walls and ceilings.  Drywall only requires hand finishing at the fasteners and joints. The drywall process requires less labour and drying time. 
As opposed to a week-long plaster application, an entire house can be drywalled in one or two days by two experienced drywallers. Drywall is easy enough to use that it can be installed by many amateur home carpenters.


Drywall is easily damaged by exposure to water.  It is for this reason that greenboard and cement board is used for rooms expected to have high humidity.  Greenboard is drywall that contains an oil-based additive in the green coloured paper covering that provides moisture resistance. It is commonly used in washrooms and other areas expected to experience elevated levels of humidity.  Cement board is more water-resistant than greenboard and is for use in showers or sauna rooms, and as a base for ceramic tiles. However, the best option for moisture management is fiber glass drywall i.e. DensShield.


Drywall panels are manufactured in 48 inches (120 cm) wide panels in varying lengths to suit the application. Common panel thicknesses are 1/2" (12.7 mm) and 5/8" (16 mm), with panels also available in 1/4" (6 mm) and 3/8" (10 mm).





Stucco is used as a coating for walls and ceilings and for decoration. Traditional stucco is made of lime, sand, and water. Modern stucco is an exterior cement plaster wall covering. It is usually a mix of sand, Portland cement, lime and water. It can be directly applied to brick and concrete, or applied to a lath (paper or wire mesh) over a wood frame or other material.





The majority of insulation in buildings is for thermal purposes, however the term also applies to acoustic insulation, fire insulation, and impact insulation. Often insulation material is chosen for its ability to perform several of these functions at once.
Insulation reduces unwanted heat loss or gain and can decrease the energy demands of heating and cooling systems. The effectiveness of insulation is commonly evaluated by its R-value.


Steel Framing



For more than 150 years, steel has been used in the North American construction market. The use of steel framing continues to grow every year with most commercial structures now using steel framing.  Today it remains one of the strongest, most durable and economically manufactured materials. Across Canada and the United States, builders and developers are finding out about the many benefits that steel has to offer.
Although the name "steel" may conjure up images of a heavy or cumbersome material, the coated steel products used in steel framing are just the opposite. Cold formed sheet steel is a light weight, easy to handle, economical and high quality alternative to traditional wood framing materials.
A1 Building Supplies Ltd carry a wide variety of framing options of various thicknesses as well as gauges for specific load designs and are able to provide custom lengths on request.


Ceiling Systems



Ceiling panel technology has come a long way from those sagging unattractive tiles from years ago. Today’s suspended ceilings offer convenience, ease of installation and a wide range of attractive textures and colours. They work well with the latest lighting fixtures and there are many stylish grid options that will accent your panel choice. For the best combination of convenience and appearance, nothing beats the new suspended ceiling systems from CGC. A1 Building Supplies Ltd carries a full line of CGC/USG ceiling systems in a wide variety of contemporary and traditional designs.





A1 Building Supplies Ltd offers high quality tools used for drywall, stucco, insulation, steel framing and ceilings. We also offer many specialty tools that your average hardware store would not carry.

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