Composite decking does not save a landlord money on day one. What composite deck builders burnsville mn actually sell a two-unit owner is the end of a recurring line item, and that case only proves itself on a ten-year sheet. The argument, stated plainly: on a duplex with two small tenant decks, wood and composite finish the decade within about a thousand dollars of each other, and composite wins outright the moment anyone prices the labor. Everything below is the arithmetic, run on a two-unit rental with a 10×14 deck per side.
Composite Costs More Upfront And That Is Fine
Sticker shock is real. Say the pair of decks runs about $20 a square foot installed in pressure treated pine and about $33 in composite. That is 280 square feet of surface, so roughly $5,600 against $9,240, and a $3,640 gap is not a rounding error on a small rental. It is supposed to be there. You are prepaying a decade of maintenance budget at the front of the job instead of bleeding it out in $250 chunks every April, which makes this a financing decision more than a materials one.
Staining Two Rental Decks Has A Real Price
Start with what the upkeep costs when somebody else does it. An August 2026 breakdown from Cost to Renovate priced professional staining on a 300-square-foot deck at $300 to $900 per application, with most wood decks needing that treatment every one to three years. Two 10×14 decks come to 280 square feet, so the pair sits right inside that bracket. Do it yourself and the cash cost drops to roughly $250 a year in stain, brushes, sandpaper and a rented orbital sander. The dollars look small. The weekend does not, and by July the splinter complaint from the upstairs tenant arrives anyway.
A Ten Year Cost Walkthrough On One Duplex
Run the decade on the wood build first. It goes in at $5,600. Add the $250 staining line ten times over and the running total reaches $8,100. Year six brings a few cupped boards and a rail section that moves when a tenant leans on it, call it $480, which puts wood at $8,580 at the end of year ten. Composite starts at $9,240 and asks for maybe $35 a year in cleaner and a scrub brush, so it comes to $9,590 all in. The two paths finish $1,010 apart, with wood still nominally ahead. That is the number nobody selling composite puts on the first page.
Now hire the staining out twice in that same decade. Two applications at the quoted range run $600 to $1,800 against a $1,010 spread, and the wood advantage is gone somewhere in the middle of that. Local pricing moves, and the composite deck builders burnsville mn landlords hire usually quote by the square foot rather than by the deck, so get the rate in writing before you compare anything. The spreadsheet does not lie about the rest of it.
Board Grade Changes The Payback Window
Not all composite is one product. The cheap end is uncapped board, meaning the wood-flour-and-plastic core sits exposed on every face, and it fades and stains like a countertop nobody sealed. Capped board wraps that core in a bonded polymer shell, which is what carries the long fade and stain warranties, and it costs several dollars more per square foot. On a rental the capped board is usually the one that pays, because a tenant grilling on an uncapped deck will find the grease stain by month three.
Installation Details Decide Whether Savings Hold
Job after job, the part that fails first on a rental deck is not the decking at all. It is the connection to the house. A ledger board lagged into siding instead of bolted through to the rim joist with proper flashing is a leading cause of deck collapse, and no board upgrade fixes it, so have that connection inspected before you spend a dollar on surface material. Permit and inspection requirements vary by city, so ask Burnsville what it wants before framing starts. Hidden fasteners, tighter joist spacing under diagonal runs and correct drainage gaps are the rest of the list, and each one doubles as a warranty condition.
Buy Back The Weekend Not Just The Boards
Ten springs of staining two decks is roughly twenty weekend days of sanding, taping and waiting on dry weather. Price your own Saturday at anything above zero and the ledger stops being close. Wood is still the right call for an owner who enjoys the work, or who plans to sell inside five years. For a landlord holding the duplex through the next decade, the staining line is the expense worth deleting outright.
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