FORMUFIT 1-1/4" PVC products are the standard size for most structural projects. Known as the goldilocks size; it's 'not too big and not too small.' This perfect middle-ground makes the 1-1/4" PVC size ideal for manufacturing durable furniture applications without too much bulk or heft while maintaining strength. Since it is very rigid, 1-1/4" PVC works well to build patio furniture, pool ladders, beach carts, and storage shelves. Furthermore, 1-1/4" size is the most diverse FORMUFIT product line with tons of extra accessories, such as Caster Pipe Caps, Ball Caps, Fishmouth Adapters, PipeClamps, and more to complete your project.
- External-fit 1-1/4" Size PVC products have a socket diameter of 1-5/8" (1.660 in.), which is equal to the actual outside diameter of a 1-1/4" size PVC pipe.
- Internal-fit products will only fit 1-1/4" Schedule 40 size PVC pipe, which has an average inside diameter of 1.380 inches. Internal-fit products will not work with Schedule 80 or thinwall PVC pipe sizes.
Important Size Info