The design fire based on the heat release rate (HRR) of combustibles can significantly affect the assessment of fire safetyin the performance-based design (PBD). In the present PBD, however, limited information in the foreign literature has beenused without further verification due to the lack of fire information in domestic combustibles. The objective of this study isto provide information on the HRR and fire growth rate for various combustibles in residential and office spaces. To end this,the fire experiments were carried out with single and multiple combustibles. The peak HRR of combustibles used in thepresent study had a range of 36 kW∼1,092 kW. The fire growth rates were also 0.003 kW/s2∼0.0287 kW/s2 and 0.003 kW/s2∼0.0838 kW/s2 for the residential and office spaces, respectively. In particular, a sofa had the highest fire risk in terms ofthe peak HRR and fire growth rate. Finally, a methodology for calculating the peak HRR in a space was proposed throughcorrelation analysis between the peak HRR and exposed surface of various combustibles.