Coordinate deck levels with the existing building.
For a San Marcos deck project, the first useful drawing shows the door threshold, intended deck surface and surrounding ground together. A material sample cannot resolve awkward steps, blocked vents or a drainage path under the structure. Use the City’s permit resources to establish the review appropriate to your proposed structure.
If replacing an older deck, make the condition of its supports a separate assessment item. Do not assume existing framing suits a new decking product. List railings, steps, fascia and access underneath as explicit scope items. At a commercial property, provide intended occupancy and accessibility requirements early so the finished surface is part of a coordinated design.
Local reference: San Marcos permits and applications. Confirm requirements for your address and scope with the responsible authority.