Which New Build Selections Are Actually Urgent?

Peyton Janecek July 13, 2026 7 min read

Everyone talks about selections as though the deadline is a showroom appointment. It isn't. In a slab-on-grade house — which is most of what gets built in this part of Texas — your real deadline is the day the concrete goes down.

Plumbing is cast into that slab. Every drain is permanent. On a post-tensioned slab, common here, you can't just cut a new hole later without creating a structural problem. So the decisions people treat as "finish selections" are, for a handful of items, structural decisions with a hard date attached.

Here's what's actually urgent, in the order the house forces on you.

Why does this feel like chaos?

Usually because the drawings were thin.

A complete construction set already answers a large share of what people think of as selections. It locates every plumbing fixture. It dimensions the cabinetry. It sizes the windows and sets the head heights. It specifies appliance dimensions, so the cabinet openings are right. It shows the electrical layout.

When those decisions were made during design — calmly, on paper, months before anyone poured anything — the selections phase is mostly choosing finishes. When the plans were a floor plan and four elevations, all of it arrives at once, on site, with trades waiting.

So if you're drowning, it may not be your fault or your builder's. The panic is usually a symptom of a plan set that didn't go far enough.

What has to be decided before the slab is poured?

This is the short, unforgiving list. Get these wrong and the fix involves a jackhammer.

Every plumbing fixture location. Toilets, sinks, tubs, showers, floor drains, hose bibs, the pot filler if you want one.
Shower type. A curbless shower needs the slab depressed in that area. That is a pour-day decision, not a tile-shopping decision.
Freestanding tub or not — and exactly which tub. This is the classic disaster. A freestanding tub's drain comes up through the slab in one specific spot, and the tolerance is small. Different models put the drain in different places. Choosing the tub after the pour is how people end up with a tub sitting two inches off where it should be, or a patched slab.
Gas stub locations. Range or cooktop, fireplace, outdoor grill, generator, pool heater, tankless heater. Each one is a line that has to be roughed before the pour or run overhead later at extra cost.
Island utilities. Sink, dishwasher and outlets in an island all come up through the slab.
Whether you want a water softener, and where it lives.

Notice what's not on that list: colours, finishes, hardware, tile, paint. None of that affects the slab. You can be completely undecided about what your bathroom looks like and still pour on schedule — as long as you know where the fixtures go and which tub you're buying.

What gets locked during framing?

Window sizes, head heights and operation. Changing a window after framing means re-headering an opening.
Door sizes and swing directions.
Appliance sizes. A 48-inch range instead of a 36 changes the cabinet run, the hood, the venting and sometimes the framing above it.
Hood venting route. Worth settling early, because the path it takes through the structure is not always obvious.
Fireplace type. Direct-vent and masonry need very different chases.
Shower niches and benches, which are framed, not added later.
Tub deck framing for a drop-in.
Ceiling treatments — beams, coffers, vaults, and any soffit.

What gets locked at rough-in?

Once the frame is up and before drywall:

Outlet, switch and data locations
The lighting plan — every can, sconce, pendant and fan position, because the boxes go in now
Shower valve type and height. The valve body is inside the wall. A thermostatic valve with separate volume controls is a different rough than a single-handle mixer, so this is a decision, not just a finish.
Whether any toilet is wall-hung — that needs a carrier inside the wall
Exhaust fan locations and routing

The blocking list nobody gives you

This is the one that costs people money and almost nobody warns them about. Blocking — extra wood added between studs so something can be screwed to it later — has to go in before drywall. It costs almost nothing then. Afterwards it means opening walls.

Walk the frame and point at every place you will eventually hang something heavy:

Wall-mounted televisions, at the exact height
Floating vanities and floating shelves
Grab bars — in every shower and beside every toilet you might ever want one, whether or not you need them now
Large mirrors, barn door tracks, heavy drapery hardware
Closet systems, garage storage, a wall-mounted pot rack
Swing or hammock hooks on a covered porch

Blocking is the cheapest insurance in the whole build. Add it everywhere you might plausibly want it.

So what can genuinely wait?

More than people think, and this is where to give yourself permission to slow down:

Paint colours. Entirely. Choose them when the walls exist and you can see the light.
Hardware and plumbing finishes. The valve body matters early; whether the trim is champagne bronze or matte black does not.
Specific light fixtures, as long as the boxes are placed and rated correctly.
Countertop material. It gets templated after the cabinets are set, so you have longer than you'd guess.
Backsplash, mirrors, accessories, window coverings.

One genuine caveat on flooring: the material can wait, but its thickness affects transitions and door undercuts, so tell your builder early whether you're going tile, wood or both, even if you haven't picked which.

If a builder pushes you for a paint colour in month three, that's scheduling convenience rather than a real constructional deadline. Say so politely and spend the energy on the slab list instead.

How do you keep the house looking like one house?

Once the urgent list is handled, the aesthetic problem is simpler than it looks, and it comes down to restraint.

Pick one metal finish and carry it through the kitchen faucet, the cabinet hardware, the bath fittings and the lighting. Pick one stone family and run it from the kitchen through the baths. Pick one floor material and keep it continuous wherever you can.

Houses that feel designed are usually using fewer materials than houses that don't, not more interesting ones. The urge to make every room different is the most common way a custom home ends up feeling like a showroom floor.

What if you're already behind?

Ask your builder exactly one question: what is the next irreversible date, and what do you need from me before it?

Not "what do you need" — that produces a list of forty things. The next irreversible date. If the slab is three weeks out, nothing on the paint-and-hardware list matters yet, and you can put the whole of it down.

Work one deadline at a time, in the order the house dictates. It's a far shorter list than the one you're carrying around.

Where a specification helps

If what you want is a coherent set of finishes without spending four months in showrooms, that's what our interior design packets are. Twelve of them, $500 each, in four styles — each specifying a complete home: kitchen, primary bath, guest bath, powder room, utility and the open living areas, with model numbers and Houston-area suppliers rather than inspiration photos.

It won't make the slab decisions for you. Those belong in your drawings, and if yours don't cover them, that's worth raising with whoever drew them before the concrete truck is booked.

The short version

The slab is the real deadline, not the showroom
Fixture locations, shower type, the exact freestanding tub and gas stubs must be settled before the pour
Windows, doors, appliance sizes and fireplace type lock at framing
Lighting positions, outlets and shower valve bodies lock at rough-in
Blocking goes in before drywall and costs almost nothing — over-specify it
Paint, finishes, fixtures, counters and backsplash can all wait
Ask your builder for the next irreversible date, and work only to that

Most of what feels overwhelming about selections is sequencing, and sequencing is a problem you can solve in an afternoon with a construction schedule and a pen.