This fire pit is good quality for price and was perfect size for me (most are about 3” longer and wider- which for my setup was tad too big). The tiles are solid- although you’re asking for accident if you don’t glue and grout down. I invested the 10 in glue and grout snd plan to do this weekend (depending on grout color- you will make more beautiful- I went for slate grey). My one complaint is the metal is rusting rather quickly. So I also invested in enamel spray paint (about 5). Not sure which color is right as it’s a dull black almost brown. But contact me and I’ll update you. But the porcelain steel grates for bbq grate- 6 14 x 19 34. Fits perfect so long as no nipple or ridges on edges (had to send back first set).  That adds another 35.  You can prob find stainless steel for cheaper. Hope this helps.