Huge gaps in newly installed hardwood floor

[colinfitz]

We have a client in Marstons Mills on Cape Cod with a random width wood floor and the filler is crumbling and coming out. The floor is only two years old, but was obviously installed improperly. Is there any good way to repair it?woodfloor gaps.JPG

[joseph]

not sure of anything from the post .but saying it is due to being poorly installed doesn't totally cut it . when was it installed ,what was the woods moisture .what was the house up to . is the house lived in .is it excessively dry in the house right now .
on another note i have decided for houses that are not occupied[situations where there is going to be alot of movement} i will refrain from using filler if I can .
There are things that could of been done ,maynot of been but none of it is in the post .
I do not like to see alot of carpenter bashing without info .

[MarkMc]

Correctives will be dependent on where it is and how long it runs that way. That's a healthy gap though.

[dgbldr]

Is there any good way to repair it?

No.

But the post requires 10 characters.

[MarkMc]

No.

But the post requires 10 characters.

They asked about "good," not cheap-easy-quick, and there are several "good" ways to affect a repair.

[johnny watt]

With oak floors, the grain is such that you can get reasonably good results by patching cracks with thin strips of real wood.

But that picture doesn't look like oak floor, it looks like laminate wood flooring.

Looks like the original filler was thicker than it should have been from day one too.

The good thing about wood floors is that most everyone gets an area rug to cover them and then you only see the parameter.

[ThingOfBeauty]

Any gap you're seeing now is much wider due to normal seasonal shrinkage.
Wait for the season of highest average indoor humidity has just passed. Gaps that remain at this point in the year (here in DC this would be August/September) are the 'true', or as NOFMA used to say "extraordinary" gaps.
You may find few repairs are needed, though that picture isn't pretty. Filler is easy and not unreasonable. Gluing in a small strip should be pretty doable on an unstained (just polyurethaned) floor, if I'm seeing that photo correctly. Most expensive is replacing a board with one slightly wider, and re-sanding and re-finishing the floor. (To me, this has a big downside, as floors can only be refinished a limited number of times.)
You can hire a hardwood floor inspector if you want a more accurate idea of your issue(s) than we can give based on one snapshot. If there is another party involved in your situation, e.g. you're trying to get a contractor to fix what you view as defective work, an inspector might be worth a shot. However they may find that the framers made the mistake not the hardwood guys.
At any rate, a gap at this time of year is not necesarily a defect.