Floor Sanding Karingal

Small rooms are their own technical problem. The 1960s and 70s brick veneer subdivision through Karingal was built with tight courts and modest floor areas, and on a floor plate that size the proportion of edge work to open-field work climbs sharply. A big drum sander does the middle of a room quickly and cannot get within about 100 millimetres of any wall. Everything inside that margin is edger and hand work, and in a compact Karingal bedroom that margin is a substantial share of the total area.

That has real consequences for quality and for price. Edge grinders cut with a rotating disc rather than a belt, they leave a different scratch pattern, and blending the edge band into the field so the transition does not show under raking light is one of the genuinely skilled parts of this trade. Done badly it produces a visible halo around the perimeter of every room, most obvious when the afternoon sun comes through at a low angle. Done properly it is invisible. The difference is time and attention, not equipment.

The floors themselves follow the 1970s Frankston pattern. Native Australian hardwoods make up something in the order of 50 to 55 per cent of restorable stock — mostly Tasmanian Oak and Victorian Ash in narrow 65 to 85 millimetre strip, secret-nailed over joists. There is Baltic Pine in the earlier and more modest builds, and a scattering of engineered product in renovated kitchens and extensions. Most Karingal floors have spent their life under carpet, which is good news for the timber.

Corners and thresholds are the other Karingal reality. A compact house has more doorways per square metre than a large one, and every threshold is a hand-scraping job where three different sanding directions meet. Built-in wardrobes, which the era used heavily, create tight returns that no machine reaches. We budget for scraper and detail work explicitly rather than pretending the machines will get there, because a floor that is beautifully sanded in the open field and rough in every corner reads as a bad job regardless of the eighty per cent that went well.

Karingal sits in the Frankston pricing band at $45 to $65 per square metre turn-key depending on the coating system. Floor areas here are typically at the lower end of the 60 to 80 square metre band, which puts many whole-house invoices toward $3,150 rather than $4,550. What is worth understanding is that price per square metre does not fall as the room gets smaller — it usually rises, because the edge-to-field ratio works against you. Anyone quoting a discount for a small job has not thought about how the work is actually distributed.

The other cost driver here is carpet. Karingal floors have generally been carpeted since the house was built, and fifty years of tack strips means a continuous band of nail holes around the perimeter of every room and staples driven through the boards in large numbers. Removal runs $10 to $20 per square metre and it is entirely hand work. Every staple has to come out before the abrasive touches the floor, because one missed staple tears a belt and scores a line the length of the room.

Two to three days covers a standard Karingal house, and the split is slightly different from a larger job — more of day one goes to preparation and less to machine time, because the preparation does not scale down with the floor area. Nail punching, staple extraction and tack strip removal take about as long in a 60 square metre house as an 80 square metre one. Day two is fine rotary work, screening, vacuuming and topcoats, with light traffic permitted after 24 hours on a waterborne system.

The Karingal drainage basin is worth a specific mention on moisture. Parts of this pocket sit low relative to the surrounding land and hold groundwater through winter, and the subfloor clearances in the original builds are not generous. We take pin-type moisture readings at multiple points before sanding, and a result above 14 to 16 per cent means we stop and look at the subfloor before cutting anything flat. Sanding a damp floor level produces crowning once it dries, which costs a second sand to correct.

Waterborne polyurethane is our default recommendation here, and in a compact house there is an additional argument for it beyond the usual ones. Solvent-based coatings require the house to be evacuated for five to seven days while they off-gas, and in a modest three-bedroom home with no spare wing to retreat into, that means finding somewhere else to live for a week. Waterborne is under 27 grams per litre VOC, low odour, and you are back in the room the next day. For most Karingal households that alone decides it.

Sheen choice matters more in small rooms than large ones. High gloss in a compact space bounces light around and shows every imperfection in the floor and every fleck of dust that settles before the coating skins over. Satin is more forgiving and reads better against the low ceilings and modest window sizes typical of the era. Matte is an option if you want the timber to recede entirely, though it shows footmarks more readily in a high-traffic hallway.

The thing that makes Karingal floors satisfying to work on is that they are almost always intact. These were not houses that got renovated repeatedly, so the original boards are usually all present, all the same species, laid in one continuous run without patched-in sections from a removed wall or a relocated kitchen. That uniformity is rarer than you would think, and it means a Karingal floor sands to a genuinely even colour with none of the blending and stain-matching a much more expensive house often needs.