Molding Studio / Guides
Choosing exterior window trim and matching sills
Exterior trim and sills use lightweight EPS cores with coatings designed for exterior use. Compare both profiles with one opening drawing.
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Choose exterior window trim and a sill by checking both profiles against the same opening and wall drawing. Molding Studio's exterior profiles have a lightweight EPS core and flexible polymer-modified acrylic cementitious coating designed for durable exterior use. Compare the listed height, projection and cross-sections to find shapes that meet the drawing.
What should the opening drawing show?
Measure each opening's width and height. Mark the head, jambs, sill, returns, surrounding wall finish and adjoining bands or cornices. The drawing shows which runs need trim and which need sills.
How do I compare trim and sill profiles?
Review the selected variants' height, projection, piece length and cross-section. The exterior coating is designed for weather resistance, but the profile dimensions do not establish the wall assembly's drainage detail. Molding Studio confirms the selected products and delivered total; your designer or installer confirms joints, flashing, drainage and finish.
How do I prepare a material list?
Add runs for each profile and convert them to whole pieces using its listed piece length. Keep trim and sills as separate lines. Send the opening schedule, profile links or SKUs, finish requirements, quantities and destination for a quote.
Frequently asked questions
Does a matching profile guarantee a complete window detail?
No. Matching dimensions describe the decorative profiles; the opening still needs a complete wall and water-management detail.
What should I send when comparing two options?
Send the exact variant links or SKUs and the same opening drawing for both options.



