Record what is known and what is uncertainStart your sheet with four entries: previous product, approximate application date, source of that information, and areas treated. A saved label or invoice is more useful than a guess based on color. Write unknown where information is missing, and distinguish a previous owner’s recollection from a documented product. If rails and boards received different treatments, give them separate entries. You can request an assessment without identifying every earlier coating.
Compare exposed and sheltered areasAdd photographs of a worn walking path, a less exposed board, and the railings. Label where each photo was taken so changes in appearance can be located on the deck. Record observations such as peeling edges, uneven color, or remaining opaque patches rather than diagnosing the coating yourself. A weathered center does not establish that the whole deck is bare. Do not scrape unknown layers or move heavy objects just to complete the sheet.
State the appearance you want to keep or changeChoose a clear goal: visible wood grain, more covered color, or a finish similar to what is there now. Then note whether the existing surface seems consistent with that goal. Transparent stain should not be assumed to reveal wood through a retained opaque coating. Solid-color stain and deck paint also need their own suitability review. The worksheet supports that discussion; it does not establish that stripping or a particular finish conversion is practical.
Compare visible grain, covered color and exact-product use limits in the
deck finish planning guide.
Leave with a decision and an open-question listExample record: previous product unknown; sheltered boards retain opaque finish; goal visible grain. The next decision is whether the preparation needed for that goal is practical on this deck, not which transparent color to buy. If suitable preparation cannot be established, reconsider the appearance goal or leave the finish choice open. Ask for compatibility and preparation questions to be resolved before selecting the coating. Keep damaged boards and loose components on a separate repair list; this finishing estimate does not promise structural repair or guaranteed restoration.
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Exterior painting in Norridge