>> View SDR 35, SDR 26 and SDR 21 price sheets >>

United Pipe & Steel stocks SDR 35 and SDR 26 gravity sewer pipe (ASTM D3034) and SDR 21 pressure pipe (ASTM D2241) in gasket joint and solvent weld for wholesale distributors nationwide.

 As a master distributor, we buy from more suppliers than any single mill can offer, so you get SDR pipe and the rest of your pipe needs from one source.

Whether you sell SDR pipe for sewer and drain or irrigation, we carry the inventory so you don’t have to. Mix SDR with PVC, copper and steel on the same order to meet low weight minimums, with delivery to your store or jobsite anywhere in the U.S. Deep, consistent inventory means industry-leading fill rates.

SDR 35 ASTM D3034

• Gravity Sewer
• Meets ASTM D3034 (4″–15″) and F679 (18″)
• Gasket Joint available in 4″ – 18″
  • 14′ lengths primarily, 20′ lengths available in select markets
• Solvent Weld available in 4″ and 6″ diameters only
  • 10′ and 20′ lengths

SDR 26 ASTM D3034

• Gravity Sewer
• Meets ASTM D3034
• Gasket Joint available in 4″ – 12″
  • 14′ lengths only

SDR 21 ASTM D2241

• SDR 21 series pipes are suitable for use in pressurized irrigation applications
• Meets ASTM D2241
• Class 200 (200 PSI)
• Solvent Weld and Gasket Joint available in ½” to 12″ diameters
• 20′ lengths only

SDR 26 vs SDR 35: What’s the Difference?

Both meet ASTM D3034 for gravity sewer. The difference is wall thickness. SDR (standard dimension ratio) is the pipe’s outside diameter divided by its wall thickness, so a lower number means a heavier wall. SDR 35 has a pipe stiffness of 46 psi (PS46) and is the standard choice for most sewer and drain lines. SDR 26 has a pipe stiffness of 115 psi (PS115) and is typically specified for deeper burial or heavier loads.

Sharpen Your Competitive Edge With United Pipe & Steel

• Become more competitive and manage your risk on volatile commodity products while turning inventory more quickly.
• Break bundles and take advantage of low weight minimums while mixing and matching products, including copper tube, PVC pipes, threaded rod, strut and all other products we carry.
• Buy what you need, when you need it.
• Take advantage of routine ‘milk run’ delivery routes for service once or twice per week.