90 x 35 MGP10 H3 combines MGP10 structural grading with H3 preservative treatment for above-ground outdoor use, suited to deck joists and pergola framing. Machine stress grading verifies stiffness and strength, while H3 treatment protects against decay and termites above ground.
A popular size for DIY and trade deck-building projects. H3 is rated for above-ground use only — in-ground posts require H4 or H5 treated timber.







Reviews
There are no reviews yet.