I put a 17x73" piece in as a hearth that weighed over 200 lbs
Your piece will be at least 50% bigger/heavier
That's a lot of weight
Then you have to consider several people leaning on it or the person that will decide to sit on it
You will need a massive amount of support without legs
Your piece will be at least 50% bigger/heavier
That's a lot of weight
Then you have to consider several people leaning on it or the person that will decide to sit on it
You will need a massive amount of support without legs