Luan Plywood Thickness

Luan Plywood Thickness

Luan Board Plywoood Comes in a variety of sizes.. You may find hardwood and softwood plywood that are sold as 4 feet wide with a common length of a plywood sheet is 8', but you may come across four and twelve feet sheet lengths. The length and width are somewhat understandable, but I found the thickness dimension very puzzling.

In America, 3/4", 1/2" and 1/4" are the most common plywood sizes available. But, a 3/4" plywood size should be labeled (now they have actually started to label it) as 23/32", 1/2" as 15/32" and 1/4" as 7/32". This slight difference becomes an issue during construction work. For example, if a person who is into woodworking, needs to put up 1/2" plywood shelf into the dado cut of the shelf standard, then he will find a noticeable gap making the shelf slightly sloppy in the dado. So, the woodworker will have to cut the dado at 15/32" to make the shelf fit without any sloppiness.

Luan Wood Video Series
Bending Luan Wood Video
Installing Luan Wood Video
Cutting and Installing Vinyl Over Luan
Installing Luan Over Subfloor
Laying laminate over Subfloor
Making Tile Flush With Subfloor
Attaching Luan To Subfloor
Working With Luan For Do It Yourselfers 

The common varieties of softwood plywood are available in three, five and seven piles. Their length and breath dimensions are 1.2 m x 2.4 m (4 feet x 8 feet). The thickness dimension is 1/8 inch. For roofing you may use plywood sizes available in 3/8 inch. The floor boards are at least 5/8 inch in size, depending on the floor joists distance.


What is Marine Plywood?


Marine ply is also going to have more plies than typical construction ply, you want to be on the look out for higher numbers, greater than 7 in my opinion. Marine ply is going to be lighter than ext ply and especially pressure treated ply. For your boat I would go with the Home Depot pressure treated varieties. Your best bet is to get 2 sheets of 3/4 pt ply, let them dry for a week, then glue them together.




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What is Marine Grade Plywood