Burnsville Wood Flooring has spent more than twenty years installing, sanding and refinishing wood flooring in Golden Valley, and the first question on any visit here is which of two very different buildings we are standing in. One call is a postwar house with solid oak hiding under carpet, sitting on a wood joist floor and a heating system that has been drying it out every winter for decades. The other is a unit several floors up, where what may go down is settled by paperwork before anyone gets to settle it by taste.
Those two jobs share a species and almost nothing else. The tools overlap, the measurements do not, and the order in which decisions get approved runs in opposite directions. We price and schedule them as separate kinds of work, because treating them as one job is how a floor ends up wrong.
What does carry across both is measurement. We read indoor relative humidity with a hygrometer on the first visit and write the number down, and we check the moisture content of the flooring against the moisture content of the subfloor before a single board is fastened. Grit sequence, finish, expansion gap and installation method all get set against those readings rather than against an assumption.
Two markets, and almost nothing in between them
This city’s housing stock is not spread evenly across the decades, and that lands directly on the floors. The 1950s and the 1960s together supply 50.2 percent of the 10,367 housing units, the 1950s alone at 28.1 percent and the 1960s at 22.1 percent. Newer construction is a real but smaller presence: 19.3 percent of units were built in 2000 or later, with 10.6 percent of the total dating from the 2010s.
The practical consequence is that the two halves rarely meet in the middle. A floor in one is governed by everything the house has already been through; a floor in the other is governed by what the building’s own rules allow.
The postwar half
Those midcentury houses are overwhelmingly detached. 5,686 owner-occupied units are single-unit detached structures, 83.6 percent of everything owner-occupied and 59.1 percent of all occupied units, and owner occupancy across the city runs to 70.7 percent, or 6,803 of 9,623 occupied units. Most of the postwar floors we look at therefore belong to the person standing next to us, and the decision about what happens to them gets made in the room.
Under the carpet in that half of the market we usually find three-quarter inch solid strip oak, site-finished, laid over a plywood subfloor or over board sheathing. It has been sanded before, sometimes twice, and how much of it is left is a measurement rather than an opinion.
The other fifth, stacked
At the far end of the range, 2,191 units, 21.1 percent of the housing here, sit in buildings of fifty or more units. That is a substantial share for a suburb of this size, and it is why a meaningful number of our calls in this city open with a document instead of a floor.
Between the two groups there is very little. Single-unit attached structures account for 557 units, 5.4 percent of the stock, so the middle ground that carries a lot of flooring work elsewhere barely exists here. We plan for two conversations, not three.
Looking for wood-flooring closer to Falcon Heights? See Falcon Heights Wood-Flooring.
A seventy-year-old solid oak floor facing its second refinish
A solid three-quarter inch strip floor from the 1950s holds a finite number of sandings, and by now many of them have spent one or two. The wear layer above the tongue is what remains to work with, and once a drum sander reaches the tongue the floor is finished as a sandable floor. We measure before quoting, at a doorway, a floor register cutout, or anywhere else the edge of a board can actually be seen.
How much floor is left
Red oak strip is the common find, with quartersawn white oak turning up in the more carefully finished houses. Where boards have been sanded thin we say so before the machines arrive, rather than after a sand-through opens in the middle of a hallway. A floor with one refinish left in it is still well worth doing; it is worth doing once, deliberately, instead of twice in five years.
Recoat, or take it to bare wood
When the finish is worn but the wood underneath is sound, a screen-and-recoat is the honest answer. An abrasive screen on a buffer takes the top off the existing coating, fresh waterborne polyurethane goes down, and the floor keeps every thousandth of an inch that a drum sander would have removed. We quote that against a full sand-and-refinish every time, including the jobs where the cheaper option is the right one.
A full sand earns its place when the damage is real: deep gouging, staining that has gone through the finish, overwood left by a previous job, or boards that have to come out. Then we run a written grit sequence, a 36-50-80 progression being typical on old oak, with the edger and the buffer following the drum, and that sequence and the finish schedule are handed over with the quote so the work can be checked against something. Board replacement, a weave-in where a wall was removed, or a dutchman patch at an abandoned register cutout is priced as its own line instead of being buried.
Working in older housing
70.2 percent of units here predate 1980 and 37.1 percent predate 1960, so most of this work happens in pre-1978 housing and the EPA RRP lead-safe rule shapes how the site is set up. Dust containment runs on every sanding job regardless, and we give a straight answer about what containment does not catch. A concentration of midcentury modern work has been reported near Theodore Wirth Park, and those houses in particular reward keeping an original floor over replacing it.
A recent unit where the declaration decides what may go down
In a building of fifty or more units, the flooring decision is not made inside the unit. It is made in the declaration and in the rules the association adopts under it, and common interest communities in this state operate under the Minnesota Common Interest Ownership Act. We read that paperwork before anyone looks at samples, because a floor that has to come back up is the most expensive floor there is.
What the declaration usually settles
Three answers come out of it most often: whether hard surface is permitted above the first floor at all, what sound rating an assembly has to meet, and who approves the specification before work begins. Many declarations add working hours, elevator reservations and insurance paperwork from anyone performing the work. We get the association and board approvals sorted out before an upstairs job starts, so a crew is not sent home halfway through a Tuesday.
Sound numbers are a specification, not a preference
Where a declaration names an impact insulation class or a sound transmission class, it is naming a laboratory-tested assembly rather than a product on its own. Impact insulation class 45 and sound transmission class 45 are the figures that come up most often, measured under ASTM E492 and ASTM E90 respectively, and they belong to the floor, the underlayment and the structure as a system. We specify the underlayment and the installation method to the rating the building asks for, and the documentation stays with the job.
In practice that points toward a glue-down or floating installation over an acoustic underlayment rather than nail-down, while the expansion gap at every wall and vertical obstruction is set exactly as it would be in a house. Where the unit is rented, a City of Golden Valley rental license under City Code Section 16-53 applies, renewed annually with a full inspection every three years for most rented properties, which is one more reason to agree the timing of interior work well in advance.
Engineered flooring and what is left to sand
Most recent units carry engineered flooring rather than solid, and engineered core construction puts a hard limit on refinishing. We measure the wear layer before quoting a refinish, because past a certain thinness there is nothing left to sand and a recoat is the only defensible option. When that is the finding we say it plainly, quote the recoat, and leave the sander in the van.
Choosing the right conversation for the building you are in
Both halves of this market share one Minnesota problem, and it is the heating season. Wood moves with the moisture in the air around it, and a heated house here spends January well below the thirty to fifty percent relative humidity band most flooring is specified for.
Reading the building before specifying the floor
We take a relative humidity reading with a hygrometer on the first visit and record it, then take moisture content readings with a moisture meter on the flooring and on the subfloor. The gap between those two figures, the moisture content differential, decides whether the material is ready, and acclimation is over when the readings agree rather than when a calendar day passes. Forced-air heat with a whole-house humidifier holds a very different equilibrium moisture content than forced-air with no humidification at all.
Where there is hydronic radiant floor heat, the eighty degrees Fahrenheit surface temperature limit governs the specification, and how the system is run around installation matters as much as the material does. We ask how the heat is operated before committing to a species and a board width.
Winter gapping, and what is actually a defect
Seasonal gapping in a solid oak floor in February is not automatically a failure. We measure the gaps and explain them before anyone calls it a defect, because a good share of what opens in January closes again by June. Cupping across the width of the boards is a different signal and gets investigated rather than sanded flat, since flattening a cupped floor with a sander produces crowning once it dries out.
Permits, sequencing and the paperwork around a job
Interior finish work of this kind falls under the Minnesota Rules 1300.0120 finish-work permit exemption, with the Minnesota State Building Code administered here by the City of Golden Valley. Where a job touches structure, a floor meeting a new addition being the usual case, footing depth is set by Minnesota Rules 1303.1600, which names Hennepin County in Zone II with a minimum allowable footing depth of three and one-half feet unless an engineer supports less.
We sequence work around the heating season instead of in spite of it, and the same crew stays on the job from the estimate through the final coat, so whoever took the first humidity reading is there for the last pass of finish. Where a floor has been damaged by water, we photograph and document it for the claim before anything is torn out.
One last thing worth saying plainly, because it is where new floors pick up their first marks: cure time is not dry time. A waterborne polyurethane is walkable long before it is ready to take rugs and furniture, and we put both windows in writing with the finish schedule rather than leaving them to be guessed at.
- 20+ Years Experience
- Free Written Estimates
- Dust Containment on Every Sand
