Shall you lock Interest Rate if you are purchasing a house?

Friday News: So far today, Bond prices remain relatively unchanged. Overall, they are still hovering near the important 200-day Moving Average, having touched it 12 of the past 16 trading days.
The Producer Price Index (PPI), which measures inflation at the wholesale or producer level, was reported this morning and showed some inflation pressure. Bonds initially traded lower on the news, but have since improved higher.
Bonds continue to trade sideways, bouncing back and forth above the 200-day Moving Average. So for now, I will recommend floating, but I will be watching closely as the bond remains above a layer of support."