what is the length of the elongated hole/opening? from past experience I know that some of these types of seats reduce the seat and opening space.
493396
I measure 11 3/4 inches from the back to the front in terms of usable space. The top of the seat flares downwards and in a bit, so the top of the seat is an even twelve inches but the bottom of the seat is a quarter inch shorter. It fits perfectly on my Toto elongated seat toilet.
493397
Not sure I can be a lot of help here. I'm disabled and can't use a tape measure on it because that's a two-handed operation, and I risk falling if I'm not holding onto something. I am a big guy and this has not been an issue for me. Look at the specs at www.brondell.com. They give measurements for this seat.Hope that helped.
1880107
Slightly higher & longer than a "Window-Box" Seat. Do you know what those look like-?
1035272
My seat has five holes when it's fully extended. Measurement from bottom of seat to the floor: 17.5 inches.
1290438
RV.... I purchased the elongated seats 5325.010.......... if this makes a difference I do not know.
69587
It fits snugly on a regular seat, so I doubt it would fit an elongated seat.
2153609
we don't have elongated seats, so I'm not sure. My in-laws have elongated seats and, although we've never brought the karibu seat with us on a visit, we have brought other potty seats, which fit in the elongated seat but tend to move around a lot more. I've thought that the karibu would be good for the elongated seat because the connected step keeps it stable and the seat (i assume) would not move around so much. sorry that I can't give a more direct answer. We love it - it's worked great for us. all the best.
1721741
Mine measures 15x14.25 for the actual seat itself. That 20x15 sounds like it might be for the elongated one. Not sure though. Hope I helped some. Good luck. It's an awesome seat.
1590801
This seat will not fit a standard size toilet and we do not carry a standard version of this seat. We do carry some that are not elongated but they are not Kohler. Ogie Customer Care @ Potty Training Concepts
665020
This type of seat is for an Elongate fixture not the standard, which is what your measurements lead me to believe you have. Try looking for a standard size seat.
2055226
I measured the underside of the toilet seat, not including hardware. The seat is 17" long nd works perfectly on our elongated toilets. After a year, these are still wonderful toilet sets.
935181
I am currently out of town but I will return this weekend. This is a very nicely made quality item. It fit our standard toilet perfectly. It is not an elongated seat. I will check the dimentions tomorrow...
2006112
The elongated seat measures 18 inches from the back hinge to the front of the seat. I don't know whether it will fit a Briggs or not since I don't know what a Briggs is. Never heard of it before. As I mentioned in my review, my hubby put it on without realizing beforehand that it was too long for our toilet bowl and he didn't feel he could return it so we've just kept it on. About an inch of the porcelain shows and I don't really like that but I love the seat itself. We bought the elongated one because the first one we purchased that we thought was just a regular size turned out to be too short. One would think there is a standard for regular toilet seats! The elongated seat measures 18 inches from the back hinge to the front of the seat. I don't know whether it will fit a Briggs or not since I don't know what a Briggs is. Never heard of it before. As I mentioned in my review, my hubby put it on without realizing beforehand that it was too long for our toilet bowl and he didn't feel he could return it so we've just kept it on. About an inch of the porcelain shows and I don't really like that but I love the seat itself. We bought the elongated one because the first one we purchased that we thought was just a regular size turned out to be too... » Read More The elongated seat measures 18 inches from the back hinge to the front of the seat. I don't know whether it will fit a Briggs or not since I don't know what a Briggs is. Never heard of it before. As I mentioned in my review, my hubby put it on without realizing beforehand that it was too long for our toilet bowl and he didn't feel he could return it so we've just kept it on. About an inch of the porcelain shows and I don't really like that but I love the seat itself. We bought the elongated one because the first one we purchased that we thought was just a regular size turned out to be too short. One would think there is a standard for regular toilet seats! « Show Less
307612
My seat was more round than elongated and it fits it very well. From back to front it is 17.25 inches and it is 14 inches wide. I had to purchase a different seat because the style I had did not have long bolt openings. I just got a different style toilet seat that had openings for the bolts to go all the way through the back of the seat. I have to tighten the bolts every now and then but if I got some locking bolts that would not be an issue. The product is working very well. I hope this helps.I do not find it difficult to clean at all.
922486
Yes se. I had elongated seat myself just make sure the one you order has it in title Luke one above .
2210313
I have an elongated toilet also-American Standard and it fits mine well. Where you screw it onto the toilet it has like slots rather than just holes so I think it would probably any elongated toilet. I love mine and wish I had gotten one several years ago because of my back problems. Good luck.
1671502
Yes it fits elongated toilets. I do not know the exact measurements but I have been happy with mine.
47436
The opening is a little smaller, 11.5" X 8". The outer edge of the seat fits my Kohler toilet.