Reference tools we keep current for the engineers, spec writers, and contractors who buy municipal castings — free to use and cite. More are on the way, starting with a manhole cover weight chart.
Catch Basin Installation Guide
Bedding, adjustment rings, grade, and the maintenance cycle, for crews and inspectors.
Why Are Manhole Covers Round?
Five engineering reasons, and why catch basin castings are square anyway.
OPSD Castings Guide
OPSD 400-series drawings and OPSS 407/408/1850 explained, with a cross-reference to DomCast SKUs and sample tender wording.
Ductile vs Grey Cast Iron
ASTM A48 and A536 grades side by side: strength, impact, corrosion, weight, cost, and where each is specified.
Municipal Castings Glossary
40 terms from Ontario and Atlantic Canada casting tenders, defined and linked to the products they map to.
Load Ratings Explained
H-20, HS-20, H-25, duty terms, and EN 124 classes, and how to pick a rating by location.
Curb Inlets
Side-inlet frames and backarch curb castings for combination inlets.
Serving Ontario
How we supply Ontario municipalities, contractors, and distributors from Windsor.
Pipe OD Chart
Outside diameters for ductile iron, PVC C900/C905, IPS, and CTS — 3" to 64", with a printable PDF.
AASHTO M306 Guide
What the proof-load spec requires, H-20 vs H-25, related standards, and sample tender wording.
Manhole Covers & Frames
The full manhole line — solid, perforated, and airtight patterns.
Catch Basins
Catch basin frames, covers, and grates for storm drainage.
Valve Boxes
Slide and screw-type water main valve boxes.
Grates & Drain Covers
Grates for C.S.P., concrete and HDPE pipe.